Mapping Patents (Class 342/191)
  • Patent number: 10698104
    Abstract: Described herein are various technologies relating to constructing a differenced change product (DCP) image. A plurality of synthetic aperture radar (SAR) images of a scene are generated based upon radar signals directed towards and reflected off of the scene, and a plurality of coherence change detection (CCD) images of the scene are generated based upon the SAR images. The CCD images are registered with one another, and their pixel values re-scaled according to a monotonic mapping function. The DCP image is generated based upon a computed pixel-wise difference between a pair of the re-scaled CCD images. The DCP image identifies locations in the scene where human activity-induced change is likely to have occurred between a pair of SAR passes of the scene.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: June 30, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Katherine M. Simonson, David Nikolaus Perkins
  • Patent number: 10564279
    Abstract: In order to enable to change a search condition of a set of SAR data, depending on a purpose of generating InSAR data, an SAR data search method according to an exemplary aspect of the invention includes: receiving an input of a search condition comprising a search purpose and an observation date/time condition, switching the observation date/time condition to be used as the search condition, depending on the search purpose, and extracting, from a metadata storage unit configured to store metadata comprising an observation date/time associated with identification information of an SAR data, the identification information of a set of the SAR data that satisfies the search condition, and outputting the extracted identification information of each piece of the SAR data in the set.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: February 18, 2020
    Assignee: NEC CORPORATION
    Inventor: Hiroshi Oyama
  • Patent number: 10535119
    Abstract: Systems and methods of enhancing the resolution of digital terrain models (DTM) for location-based applications and analyses. The DTM enhancement process takes the signature of the input image (e.g., via the input image and a noise surface file with similar characteristics as the sensor used to capture the input image) and applies it to the DTM without including large features such as buildings. The disclosed methods include utilize a process similar to that used for enhancing a DSM based on mapping the changing intensity from the image file to changes in elevation in the DSM using a regression over a local neighborhood of pixels. Further, the disclosed methods do not rely on information about the sensors and are extendable to be able to utilize any types of images. Additionally, the disclosed embodiments are sensor agnostic and can be applied on any type of image collected by any type of sensor.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 14, 2020
    Assignee: Intermap Technologies Inc.
    Inventors: Nathan Zachary Mercer, Stephen Charles Griffiths, Michael John Wollersheim, Trevor Roy Miller, Qiaoping Zhang
  • Patent number: 10501179
    Abstract: Technologies for managing assets of a data center include a unmanned aerial vehicle (UAV) communicatively coupled to a remote computing device. The UAV is configured to navigate throughout a data center and capture data center mapping information during the navigation usable to generate a three-dimensional (3D) model of the data center. The UAV is further configured to transmit the captured data center mapping information to a remote computing device. Accordingly, the UAV can receive instructions from a remote computing device that define a type of task to be performed by the UAV in the data center and perform such a task (e.g., a data center map update task, an asset inventory task, a maintenance task, a visual inspection task, etc.) based on the received task instructions. Other embodiments are described and claimed herein.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: December 10, 2019
    Assignee: Intel Corporation
    Inventors: Igor Ljubuncic, Raphael Sack, Tomer Rider, Shahar Taite, Robert L. Vaughn, Vishwa Hassan, William L. Giard
  • Patent number: 10488512
    Abstract: The present invention extends to methods, systems, devices, and apparatus for landing guidance for remotely operated aerial vehicles using crossed radar beams. Radar units can be angled over a landing pad/dish for a Remotely Operated Aerial Vehicle. The Remotely Operated Aerial Vehicle lines up over radar beams by basically following radar beams to equalize the returned energy of each beam. The radar units facilitate lateral position tracking. When a Remotely Operated Aerial Vehicle is off to one side, returns for one or more beams may be stronger than returns for one or more other beans. When a Remotely Operated Aerial Vehicle is maneuvered to an appropriate position for terminal guidance, rotors can be turned off and/or thrust settled (e.g., to 90%).
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: November 26, 2019
    Assignee: Olaeris, Inc.
    Inventor: Paul E. I. Pounds
  • Patent number: 10459456
    Abstract: A system and method for flying an aircraft is disclosed. A perception system at the aircraft tracks a trajectory of a moving object. A processor determines, from the trajectory of the moving object, a reference frame in which the moving object is stationary and establishes the aircraft at a selected offset from the moving object for the trajectory of the moving object. The aircraft is flown along a flight path based on the selected offset using calculations performed with respect to the determined reference frame.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 29, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Daniel Montrallo Flickinger, Mark D. Ward, William T. McNeill
  • Patent number: 10337833
    Abstract: A method for providing highly accurate coordinates and elevation of a remote terrestrial-based location is described. The method also provides for the determination of a number of high-accuracy values including the location and elevation of the point of observation, and the distance and bearing from the point of observation to the remote location. Also described is a method for compensating for unknown effects of the associated atmospheric refractivity, and errors in input data.
    Type: Grant
    Filed: February 15, 2015
    Date of Patent: July 2, 2019
    Inventor: Stephen David Knapp
  • Patent number: 10338215
    Abstract: The measuring point information providing device of the present invention inputs an SAR image set holding at least information indicative of a reflection intensity and a phase so as to be associated with each pixel corresponding to a resolution cell within a field of vision for image capturing including a specific region. The information is generated from observation data formed of four basic polarization pairs, i.e. HH, HV, VH and VV polarization pairs observed at generally the same time. The measuring point information providing device determines a polarization pair whose reflection intensity is not less than a predetermined value or the highest with respect to each target pixel by using the input SAR image set, and generates measuring point information including at least information indicative of the determined polarization pair of the target pixel based on a polarization pair determined by the polarization pair determination unit.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: July 2, 2019
    Assignee: NEC CORPORATION
    Inventor: Minoru Murata
  • Patent number: 10153549
    Abstract: Antenna systems and methods of detecting RF signals received from a field of view (FOV) are presented, employing intersecting fan beam pluralities formed by associated columns or rows of antenna elements and cross-correlation of components of the received radiation from the fan beam pluralities. The intersecting fan beams pluralities form pencil-like beams persistently spanning the FOV as desired. Angle(s) of arrival and frequency channels of incident RF signals may be determined through power estimation, ranking and filtering, and/or frequency channelization techniques. Higher sensitivity beams may be cued to more accurately characterize the incident signals.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: December 11, 2018
    Assignee: Raytheon Company
    Inventors: Ian S. Robinson, Anton Horvath, Bradley A. Flanders
  • Patent number: 9944390
    Abstract: Technologies for managing assets of a data center include a unmanned aerial vehicle (UAV) communicatively coupled to a remote computing device. The UAV is configured to navigate throughout a data center and capture data center mapping information during the navigation usable to generate a three-dimensional (3D) model of the data center. The UAV is further configured to transmit the captured data center mapping information to a remote computing device. Accordingly, the UAV can receive instructions from a remote computing device that define a type of task to be performed by the UAV in the data center and perform such a task (e.g., a data center map update task, an asset inventory task, a maintenance task, a visual inspection task, etc.) based on the received task instructions. Other embodiments are described and claimed herein.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: April 17, 2018
    Assignee: Intel Corporation
    Inventors: Igor Ljubuncic, Raphael Sack, Tomer Rider, Shahar Taite, Robert L. Vaughn, Vishwa Hassan, William L. Giard
  • Patent number: 9706117
    Abstract: A system for capturing aerial images, the system comprising at least one camera unit, the at least one camera unit comprising at least one detail camera, the pointing direction of the at least one detail camera time-multiplexed via a steerable mirror to implement a virtual array of cameras with overlapping fields of view, thereby to allow the at least one detail camera to capture an extended field of view.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: July 11, 2017
    Assignee: nearmap Australia Pty Ltd.
    Inventors: Paul Lapstun, Mark Harold Tarlinton, David Arnold Bleads
  • Patent number: 9653003
    Abstract: Methods and apparatus ascertain a geographic position based on topographic contours of ocean surfaces. Observed ocean topographic contours are matched to predicted ocean topography and/or ocean topographic information stored in a database. Such systems and methods do not necessarily require INS, GPS, RF beacons, optical beacons or celestial sightings. These systems and methods may be used as references to correct INS. These systems and methods may be used to ascertain a geographic location of an aircraft, spacecraft, watercraft, landcraft (vehicle), person or the like. Similarly, these systems and methods may be used as part of a guidance system for guiding a craft to a destination. These systems and methods may be used in tandem with, or as backups for, other types of navigation or guidance systems or as one input to a navigation filter.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 16, 2017
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Gregory P. Blasche, Paul Bohn, Robin Mark Adrian Dawson, Walter Foley, Benjamin F. Lane, Sean McClain, Erik L. Waldron, Stephen P. Smith
  • Patent number: 9552638
    Abstract: A device includes an image data receiving component, a vegetation index generation component, a spatial structure variance generation component, a classification component and a water budget component. The image data receiving component receives multiband image data of a geographic region. The vegetation index generation component generates a vegetation index based on the received multiband image data. The spatial structure variance generation component generates a spatial structure variance image band based on the received multiband image data. The classification component generates a land cover classification based on the received multiband image data, the vegetation index and the spatial structure variance image band. The water budget component generates a water budget of a portion of the geographic region based on the land cover classification.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 24, 2017
    Assignee: OMNIEARTH, INC.
    Inventors: Kristin Lavigne, Shadrian Strong, David Murr, Lars P. Dyrud, Jonathan T. Fentzke, Indra Epple
  • Patent number: 9319891
    Abstract: An approach is provided for providing wireless communication in a remote area by using an aerial vehicle. Signal strength information received at a plurality of antennas mounted over the aerial vehicles is monitored. The antennas are associated with a plurality of stabilizing control mechanisms of the aerial vehicle. The signal strength information is processed to determine control adjustment information, which is then transferred to the stabilizing control mechanisms for orienting the aerial vehicle such that maximum signal is reflected and/or repeated from the aerial vehicle.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Fred Weisbrod, Donna L. Polehn
  • Patent number: 9194931
    Abstract: The present invention proposes a length measurement method and a length measurement device. The length measurement method includes steps of emitting the laser via a laser ranging module in a reference direction to order to detect a reference distance between a reference point on a target and the laser ranging module, taking the reference direction as a the measurement direction, taking the reference distance as a first distance, executing a border detecting procedure according to the measurement direction and the first distance in order to detect a border of the target, and calculating measurement distance between the border and the reference point according to border location information of the laser ranging module corresponding to the border, the reference direction and the reference distance.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: November 24, 2015
    Assignee: WISTRON CORP.
    Inventors: Wen-Chun Tsao, Yao-Tsung Chang, Chia-Hsien Li
  • Patent number: 8981990
    Abstract: A system and a method of generating a three-dimensional terrain model using one-dimensional interferometry of a rotating radar unit is provided herein. Height information is evaluated from phase differences between two echoes by applying a Kalman filter in relation to a phase confidence map that is generated from phase forward projections relating to formerly analyzed phase data. The radar system starts from a flat earth model and gathers height information of the actual terrain as the platform approaches it. Height ambiguities are corrected by removing redundant 2? multiples from the unwrapped phase difference between the echoes.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: March 17, 2015
    Assignees: Elbit Systems Ltd., RST Radar Systemtechnik GmbH
    Inventors: Hans Martin Braun, Gadi Maydan, Holger Baessler, Carston Jonas, Ofer Klein
  • Patent number: 8754802
    Abstract: A system that applies attribute and topology based change detection to networks of objects that were detected on previous scans of a structure, roadway, or area of interest. The attributes capture properties or characteristics of the previously detected objects, such as location, time of detection, size, elongation, orientation, etc. The topology of the network of previously detected objects is maintained in a constellation database that stores attributes of previously detected objects and implicitly captures the geometrical structure of the network. A change detection system detects change by comparing the attributes and topology of new objects detected on the latest scan to the constellation database of previously detected objects.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: June 17, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: David W. Paglieroni, N. Reginald Beer
  • Patent number: 8717223
    Abstract: The classification system represents a detected object with a feature vector derived from the return signals acquired by an array of N transceivers operating in multistatic mode. The classification system generates the feature vector by transforming the real-valued return signals into complex-valued spectra, using, for example, a Fast Fourier Transform. The classification system then generates a feature vector of singular values for each user-designated spectral sub-band by applying a singular value decomposition (SVD) to the N×N square complex-valued matrix formed from sub-band samples associated with all possible transmitter-receiver pairs. The resulting feature vector of singular values may be transformed into a feature vector of singular value likelihoods and then subjected to a multi-category linear or neural network classifier for object classification.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 6, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: David H. Chambers, David W. Paglieroni
  • Patent number: 8712679
    Abstract: A system and methods for building a map non-invasively (i.e. mapping of occluded and non-occluded obstacles) based on a small number of wireless channel measurements. Approaches for building an obstacle map are based on coordinated space, random space and frequency sampling, such that the sparse representation of the map in space, wavelet or spatial variations, are exploited in order to build the map with minimal sensing.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 29, 2014
    Assignee: STC.UNM
    Inventors: Yasamin Mostofi, Pradeep Sen
  • Patent number: 8692704
    Abstract: A set of co-registered coherent change detection (CCD) products is produced from a set of temporally separated synthetic aperture radar (SAR) images of a target scene. A plurality of transformations are determined, which transformations are respectively for transforming a plurality of the SAR images to a predetermined image coordinate system. The transformations are used to create, from a set of CCD products produced from the set of SAR images, a corresponding set of co-registered CCD products.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 8, 2014
    Assignee: Sandia Corporation
    Inventors: David Nikolaus Perkins, Antonio I. Gonzales
  • Patent number: 8686892
    Abstract: A method of reducing cross-range streaking in a radar image includes determining a number of on-pixels in each line of at least a portion of the radar image, determining which lines have a determined number of on-pixels that exceeds a threshold number, and removing the on-pixels of lines having the determined number of on-pixels exceeding the threshold number.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: April 1, 2014
    Assignee: Raytheon Company
    Inventor: Brent McCleary
  • Patent number: 8681039
    Abstract: Devices, methods, and systems for occupancy detection are described herein. One or more device embodiments include a memory and a processor. The processor is configured to execute executable instructions stored in the memory to determine an interference temperature associated with a number of radio equipped devices located in an area at a point in time, determine a radio tomographic map associated with the area at the point in time, and determine whether the area is occupied at the point in time based on the determined interference temperature and the determined radio tomographic map.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 25, 2014
    Assignee: Honeywell International Inc.
    Inventors: Lance Hester, Soumitri Kolavennu
  • Patent number: 8659467
    Abstract: A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 25, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: David H. Chambers, Jeffrey E. Mast, David W. Paglieroni
  • Patent number: 8618976
    Abstract: A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 31, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: David W. Paglieroni, Jeffrey E. Mast, N. Reginald Beer
  • Patent number: 8604969
    Abstract: A sensor is used to identify detections of discrete objects in a search grid. An image grid of the detections is created. The image grid is analyzed to identify a pattern of detections. The pattern of detections is used to identify objects of interest.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: December 10, 2013
    Assignee: Raytheon Company
    Inventors: Thomas E. Wood, Douglas W. Arent, Charles M. Ciany, Clifford M Curtis, Thomas B. Pederson
  • Patent number: 8502728
    Abstract: New systems and methodologies that use radio tomography for object tracking.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: August 6, 2013
    Assignee: University of Utah Research Foundation
    Inventors: Sarang Joshi, Anthony Joseph Wilson, Neal Patwari
  • Patent number: 8502731
    Abstract: A system and method of detecting moving targets comprises transmitting electromagnetic waves rays from a plurality of transmitters at sequential; receiving reflected waves into a plurality of receivers after each transmission; the compilation of the reflected waves from the plurality of receivers for each transmission representing a data frame; forming a signal that monitors changes between the two sets of frames; at least one processor operating to process and compare frames; forming a difference image using a back-projection algorithm; scanning the difference image using a constant false alarm rate (CFAR) window; the CFAR window scanning the entire difference image and identifying a list of points of interest and eliminating the sidelobe artifacts present in the difference image thereby creating CFAR images; processing the CFAR images using morphological processing to create a morphological image; determining the number of clusters present in the morphological image; using K-means clustering to indicate the
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: August 6, 2013
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Anthony Frank Martone, Kenneth Irving Ranney
  • Patent number: 8493264
    Abstract: In the case where radar image data obtained from a radar device equipped in a flying body and optical image data of a district taken by the radar device are synthesized to produce a terrestrial object information judging image, the radar image data are approximated to a black and white panchromatic image character. The radar image data approximated to the black and white panchromatic character and the optical image data are aligned in position and then synthesized. As a suitable embodiment, in an approximation processing of the radar image data to the black and white panchromatic image character, histogram conversion processing is carried out in accordance with a histogram characteristic of the radar image data.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: July 23, 2013
    Assignee: Pasco Corporation
    Inventor: Tadashi Sasakawa
  • Patent number: 8194250
    Abstract: The present invention relates to a method of wideband RF detection. The method may include transmitting a signal from a plurality of transmit positions along a drive path. Reflections of the transmitted signal are received at a plurality of receive positions along the drive path. A signature is formed based on arrival angles of the reflections at each of the receive positions. The signature includes the arrival angles of the reflections at each of the receive positions with respect to a distance along the drive path of a corresponding transmit position and a corresponding receive position of each of the reflections.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 5, 2012
    Assignee: Alcatel Lucent
    Inventor: Dennis R. Morgan
  • Patent number: 8164507
    Abstract: In particular embodiments, analyzing data includes receiving sensor data generated in response to sensing one or more structures. The structural features of the sensor data are identified. Each structural feature is represented by one or more vectors. A score matrix that describes a plurality of distances among the vectors is generated. Vector pairs are formed from at least some of the vectors according to the distances of the score matrix. A layout of the structures is generated from the vector pairs.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: April 24, 2012
    Assignee: Raytheon Company
    Inventors: Benjamin M. Howe, Daniel W. Otts, Winthrop W. Smith
  • Patent number: 8159384
    Abstract: To suppress cross-ambiguities in the examination of an ice region or dry region by means of aircraft- or aerospace-supported radar echo sounding, the region to be examined is overflown by a radar sensor (6) by multiple compatible radar sensors of the same operating wavelength on multiple spatially separated, substantially parallel paths, wherein the radar signal data received on each path are recorded. The radar signal data recorded for each of the different paths are summed coherently and using a weighting to form a radargram, wherein an adaptive complex-valued weighting for each of the individual paths is performed using a geometrical model which takes into account the topography of the environment of the region to be examined. The weighting for every depth of the examined region is determined by solving a system of linear equations from which is calculated a synthetic antenna pattern which has zeros in the direction of the ambiguities.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: April 17, 2012
    Assignee: Deutsches Zentrum fur Luft-und Raumfahrt E.V.
    Inventor: Rolf Scheiber
  • Patent number: 8077081
    Abstract: Radar return processing systems and methods are operable to process radar information when an installation vehicle is operating in proximity to a surface area of interest. An exemplary embodiment reduces energy of an output pulse emitted from a radar system; receives a plurality of radar returns from a plurality of objects that reflect the reduced energy output pulses emitted from the radar system; determines a surface area of interest based upon at least a current location of the installation vehicle; and filters the radar returns generated by objects that are located outside of the surface area of interest. Optionally, some systems and methods may reduce a sweep range of an antenna from which the reduced energy output pulses are emitted.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: December 13, 2011
    Assignee: Honeywell International Inc.
    Inventors: C. Don Bateman, John J. Poe, John H. Glover
  • Patent number: 8077072
    Abstract: A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interior structural features based on the markers. A method includes: scanning a building structure from the exterior of the structure using a radar unit to provide raw data; processing the raw data into markers of interior locations of the structure; estimating locations of interior structural features of the structure from the markers; and displaying an image of the interior structural features.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: December 13, 2011
    Assignee: Tialinx, Inc.
    Inventors: Farrokh Mohamadi, Soumya K. Nag
  • Patent number: 8063817
    Abstract: Methods and apparatus for enhancing the resolution of a radar image in the cross-range direction. An example method includes receiving a plurality of received power samples in the cross-range dimension as the radar antenna scans and calculating a window function from the antenna beam response pattern. Then for each of a plurality of positions of the window function along the azimuth axis, multiplying the received response pattern by the window function at that position, yielding a product function for each position. Finally, the method includes calculating an estimated azimuth bin offset, resulting estimated target location, and a reflected power value corresponding to the integral of the product function from the product function of each position. A reconstructed azimuth bin array developed from the estimated target locations and reflected power values is substituted for the original received cross-range received power values, yielding a resolution-enhanced map image.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: November 22, 2011
    Assignee: Honeywell International Inc.
    Inventor: Paul Christianson
  • Patent number: 8059025
    Abstract: An altimetry method comprising: providing a signal receiver (RX) on a first platform (S1) flying above a portion of the Earth surface (ES), for receiving a temporal series of signals emitted by a second flying platform (S2) and scattered by said portion of the Earth surface; and computing altimetry waveforms, indicative of an elevation profile of said portion of the Earth surface, by processing the received signals; characterized in that said step of computing altimetry waveforms comprises: cross-correlating the received signals with a plurality of locally-generated frequency-shifted replicas of the emitted signals; introducing a frequency-dependent temporal shift to the correlation waveforms in order to compensate for range delay curvature; and incoherently summing the temporally shifted correlation waveforms (CXC) corresponding to signals scattered by a same region of the Earth surface at different times during motion of said first platform.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: November 15, 2011
    Assignee: Agence Spatiale Europeenne
    Inventor: Salvatore D'Addio
  • Patent number: 8059911
    Abstract: A depth-based image enhancement system is disclosed. A depth estimation unit generates three-dimensional (3D) depth information from a two-dimensional (2D) image. Subsequently, an image enhancement unit enhances the 2D image according to the 3D depth information.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 15, 2011
    Assignees: Himax Technologies Limited, National Taiwan University
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang
  • Patent number: 8040273
    Abstract: According to one embodiment, a radar includes multiple antenna elements coupled to an image processing application. The antenna elements have a differing vertical spatial separation relative to one another and are configured to transmit a radio-frequency signal toward a stationary object and receive multiple reflected radio-frequency signals from one or more internal features of the building. The image processing application receives the reflected radio-frequency signals as the antenna elements are moved horizontally with respect to the stationary object. From these reflected radio-frequency signals, the image processing application generates imagery of the stationary object according to phase variations in the plurality of received radio-frequency signals. The imagery depicting vertical characteristics of the one or more internal features of the building.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: October 18, 2011
    Assignee: Raytheon Company
    Inventors: John L. Tomich, Raymond Samaniego, Jerry M. Grimm
  • Publication number: 20110241934
    Abstract: The present invention relates to an indirect radar holography apparatus for scanning a scene and generating a high-density signal pattern representing said scene.
    Type: Application
    Filed: February 22, 2011
    Publication date: October 6, 2011
    Applicant: Sony Corporation
    Inventor: Michel SARKIS
  • Patent number: 7982657
    Abstract: Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off a homogeneous material (e.g., metal plate), determining coefficients to correct the measured/reflection in order to make the measurements look like an idealized reference signal, and then using these coefficients in a digital filter to correct measurements/a reflection off a heterogeneous material, such as a road surface. In this manner, the composition of the heterogeneous material is determined with greater accuracy.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: July 19, 2011
    Assignee: Geophysical Survey Systems, Inc.
    Inventors: Jeffrey R Feigin, Alan E Schutz
  • Patent number: 7973705
    Abstract: A plotting system and method for plotting radar and/or sonar signals on a bump map, with a simulated height of each data point representing a corresponding signal strength. The plotting system may comprise a processing device for associating particular signal strengths with normal vectors. The normal vectors may be used to determine the simulated heights to be illustrated on the bump map. The plotting system may also comprise a display for graphically displaying the bump map. Furthermore, the processing device may also associate particular signal strengths with particular colors, such that both color and simulated height may illustrate the strength of the plotted signals.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 5, 2011
    Assignee: Garmin Switzerland GmbH
    Inventors: Michael D. Cunning, Minchun Liu
  • Patent number: 7944389
    Abstract: Systems and methods for monitoring and classifying RF emissions in the field include storing an electronic signature map (ESM) of a selected geographic area, where the electronic signature map includes previously detected emitter closeness measures (ECMs) in the selected geographic area. The ECMs are representative of detected sources of radio frequency energy. A RF energy emission is detected, a new ECM for that RF energy emission is created, and that the new ECM is compared with the ECMs in the ESM. That comparison may help to determine whether the RF energy emission should be considered a threat.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 17, 2011
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Ning H. Lu, Peter D. Steensma
  • Patent number: 7924210
    Abstract: A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combination with a LiDAR system, overflying the area of interest while directing energy toward the area of interest, using the VHF radar system to collect backscatter data from the trees as a function of incidence angle and frequency, and determining a magnitude of the biomass from the backscatter data and data from the laser radar system for each radar resolution cell. A biomass map is generated showing the magnitude of the biomass of the vegetative elements as a function of location on the map by using each resolution cell as a unique location thereon. In certain preferred embodiments, a single frequency is used with a linear array antenna.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: April 12, 2011
    Assignee: Zimmerman Associates, Inc.
    Inventor: Patrick W Johnson
  • Patent number: 7916069
    Abstract: A radar device is provided in this disclosure. The radar device includes an area determination module for performing a determination of a noise superior area or a target-echo superior area for each divided area of a radar-search area defined in advance, a noise-level calculation module for calculating a noise level for a divided area based on received signals from the divided area that is determined as the noise superior area, and an interpolation module for interpolating or extrapolating the calculated noise level for the divided area that is determined as the noise superior area, to obtain a noise level for a divided area that is determined as the target-echo superior area.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: March 29, 2011
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Akira Okunishi, Masahiro Nakahama, Masashi Ohhora
  • Patent number: 7898458
    Abstract: A ground surface as an image acquiring object is acquired by a synthetic aperture radar mounted on an artificial satellite at a usual time before occurrence of a disaster and thereby radar image data are obtained. After the occurrence of the disaster, an image of the ground surface as the image acquiring object is acquired within days shorter than the number of orbit returning days and by comparing this radar image data with the radar image data acquired at the usual time so as to try to early grasp a damaged situation. At a recovering and rebuilding time after the occurrence of the disaster, images of the image acquiring object are periodically acquired so as to prepare a recovering and rebuilding plan and prevent secondary disasters.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: March 1, 2011
    Assignee: Pasco Corporation
    Inventors: Takashi Shibayama, Takashi Nonaka, Yoichi Sugimoto
  • Patent number: 7868811
    Abstract: A weather radar system includes an input for receiving lightning detection data and processing electronics for determining a presence of a convective cell or associated hazard. The processing electronics receive weather radar data and the lightning detection data. The weather radar data is related to radar returns. The processing electronics provide temporal or spatial filtering of the lightning detection data to provide filtered data and determine a position of the convective cell or associated hazard in response to the weather radar data and the filtered data.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: January 11, 2011
    Assignee: Rockwell Collins, Inc.
    Inventors: Daniel L. Woodell, Kevin M. Kronfield, Karen L. Walling
  • Patent number: 7777666
    Abstract: Systems and methods for mapping a surface of a celestial body containing objects and terrain are provided. One system includes a Synthetic Aperture RADAR (SAR) module configured to capture a high-resolution image of the terrain of at least a portion of the surface and a map module configured to store map data representing the portion of the surface. The system also includes a fusion module configured to combine the high-resolution image and the map data to generate a high-resolution map of the portion of the surface. A method includes orbiting the celestial body, capturing, via the SAR module, a high-resolution image during each orbit, and fusing the captured high-resolution image with a low-resolution map of the surface to generate a high-resolution map of the surface. A computer-readable medium for storing instructions that cause a processor to perform the above method is also provided.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: August 17, 2010
    Assignee: Honeywell International Inc.
    Inventors: William Gregory, Mitch Fletcher, Randy Black
  • Patent number: 7768441
    Abstract: A method for representing surface deformation measurements, including providing InSAR data, wherein the InSAR data is line of sight InSAR data; providing Global Positioning System (GPS) data; filtering the InSAR data; assembling the GPS data over a time span; resolving the GPS data into a line of sight direction; determining a correction; generating a corrected line of sight image; generating a plurality of XY motion maps, wherein generating includes: correlating a plurality of XY motions from a plurality of GPS sites with a gradient of the corrected line of site image; determining a correlation coefficient; and building a plane of XY motion using at least one of the plurality of XY motions; using the correlation coefficient to produce a linear combination of the plurality of XY motion maps; and using the linear combination to convert the InSAR data to vertical motion.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: August 3, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Eric Davis, Scott Marsic
  • Patent number: 7737877
    Abstract: A computer system for processing complex synthetic aperture radar (SAR) images includes a database for storing complex SAR images to be processed, and a processor for processing a complex SAR image from the database. The processing includes receiving a complex SAR data set for a SAR image comprising a plurality of pixels, and applying a complex anisotropic diffusion algorithm to the complex SAR data set. The complex SAR data set includes a real and an imaginary part for each pixel.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: June 15, 2010
    Assignee: Harris Corporation
    Inventors: Kenneth Sartor, Josef Allen, Emile Ganthier
  • Patent number: 7688248
    Abstract: A 3D rendered image of a radar-scanned terrain surface is provided from a radar return signal from the surface, wherein the return signal includes data indicative of azimuth, elevation, and range of a radar-illuminated area of the surface. The data are processed for transformation into X, Y, and Z coordinates. The X and Y coordinates corresponding to each illuminated area are triangulated so as to create a mesh of triangles representing the terrain surface, each of the triangles in the mesh being defined by a vertex triplet. 3D imaging information (grey scale shading and/or coloring information) is added to each triangle in the mesh, based on the amplitude of the radar return signal from the coordinates represented by each vertex in the triplet and the value of the Z coordinate at each vertex, so as to form the 3D rendered image.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: March 30, 2010
    Assignee: Sierra Nevada Corporation
    Inventors: Jack Cross, Theodore Bosworth, Craig Chapman, David Howard
  • Publication number: 20100019956
    Abstract: According to one embodiment, a radar tracking system includes a radar coupled to a radar processing system. Radar processing system receives images from the radar and that are each obtained at a differing angular orientation of the radar to a target. Radar processing system dithers each image along its azimuthal extent and then combines the dithered images to form an enhanced image of the target.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 28, 2010
    Applicant: Raytheon Company
    Inventors: Raymond Samaniego, Jagannath Rath, Brandeis E. Marquette