Abstract: A Slope Stability Lidar that directs a beam of optical radiation into an area on a point by point basis, each point having an elevation and azimuth and a processor that acquires data and processes the data to compile direction data, range data and amplitude data for each point, segments the acquired data into blocks of data defining a voxel, averaging the acquired range data within the voxel to produce a precise voxel range value for each voxel, comparing voxel range values over time to identify movement and generating an alert if movement exceeds a threshold.

Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan at least a portion of the emitted pulses of light along an interlaced scan pattern. The scanner includes a first scanning mirror configured to scan the portion of the emitted pulses of light substantially parallel to a first scan axis to produce multiple scan lines of the interlaced scan pattern, where each scan line is oriented substantially parallel to the first scan axis. The scanner also includes a second scanning mirror configured to distribute the scan lines along a second scan axis that is substantially orthogonal to the first scan axis, where the scan lines are distributed in an interlaced manner.

Abstract: A distance-measuring system includes: a plurality of light sources; a light source controller that controls the plurality of light sources; an imager that generates a distance image for each reflection light emitted by the plurality of light sources and reflected by a subject; a reliability level output unit that outputs a reliability level for each distance image; and an image compositor that composites a plurality of distance images. The emission areas of the plurality of light sources which emit light at different angles relative to an optical axis of the imager have a common emission area to which light is emitted in common, and the image compositor exclusively selects pixels to be composited from the plurality of distance images for an outside of the common emission area, and determines pixels to be composited based on the reliability level for the common emission area to generate a composite distance image.

Abstract: Methods and apparatus for performing a ranging operation are provided. In one example, an apparatus comprises a transmitter circuit, a receiver circuit, a controller, and a code storage. The controller can obtain a first code from the code storage, determine, from the first code, first timing information and first amplitude information of a corresponding first group of one or more signals, and control the transmitter circuit to transmit the first group of one or more signals based on the first timing information and the first amplitude information. The controller can configure a matched filter based on the first timing information and the first amplitude information, identify return signals of the first group of one or more signals based on processing received signals using the configured matched filter, and perform a ranging operation based on the identified return signals and the first group of one or more signals.

Abstract: A light detection and ranging system modulates laser light pulses with a channel signature to encode transmitted pulses with channel information. The modulated laser light pulses may be scanned into a field of view. Received reflections not modulated with the same channel signature are rejected. Multiple light pulses of different wavelengths may be similarly or differently modulated.

Abstract: An ultrasound imaging system (100) includes a 2-D transducer array (102) with a first 1-D array (104, 204) of one or more rows of transducing elements (106, 2041, . . . 2046) configured to produce first ultrasound data and a second 1-D array (104, 206) of one or more columns of transducing elements (106, 2061, . . . 2066) configured to produce second ultrasound data. The first and second 1-D arrays are configured for row-column addressing. The ultrasound imaging system further includes a controller (112) configured to control transmission and reception of the first and second 1-D arrays, and a beamformer (114) configured to beamform the received first and second echoes to produce ultrasound data, and an image processor (116) configured to process the ultrasound data to generate an image, which is displayed via a display (224).

Abstract: A distance-measuring apparatus, a mobile object, a distance-measuring method, and a distance-measuring system. The distance-measuring apparatus and the distance-measuring method include performing matching for a plurality of images obtained by a plurality of imaging devices to convert the plurality of images into first distance information on a pixel-by-pixel basis, emitting a laser beam where at least one of a laser-beam resolution in a horizontal direction and a laser-beam resolution in a vertical direction exceeds two degrees, obtaining a reflected signal obtained when the laser beam is reflected by an object, detecting a peak that corresponds to reflection from the object from the reflected signal, calculating second distance information based on a length of time taken to observe the peak after the laser beam is emitted in the emitting, and integrating the first distance information and the second distance information with each other. The mobile object includes the distance-measuring apparatus.

Abstract: A calibration system for calibrating a LIDAR sensing system of a vehicle includes a plurality of light reflecting targets disposed at a ground surface at an end of line calibration region of a vehicle assembly facility. The light reflecting targets are arranged at the ground surface in a predetermined pattern. When a vehicle equipped with a LIDAR sensing system is at the calibration region, the light reflecting targets are in the field of sensing of at least one LIDAR sensor of the LIDAR sensing system of the vehicle. Responsive to processing of data sensed by the at least one LIDAR sensor, the calibration system determines the locations of the light reflecting targets and determines misalignment of the LIDAR sensor and calibrates the LIDAR sensing system to accommodate the determined misalignment.

Abstract: A distance measuring device according to an embodiment includes a time acquisition circuit and a distance measurement circuit. The time acquisition circuit acquires a rising time in which a measurement signal obtained by converting reflected light of a laser beam from an object into a signal reaches a first threshold and a falling time in which the measurement signal reaches a second threshold after reaching the first threshold. The distance measurement circuit measures the distance to a target object on the basis of a time difference between timing based on the rising time and the falling time and irradiation timing of the laser beam.

Abstract: A light detection and ranging (LIDAR) apparatus is provided that includes an optical source to emit an optical beam towards a target. The LIDAR apparatus further includes a mode field expander operatively coupled to the optical source to expand a mode area of the optical beam.

Abstract: An acoustic lens suitable for a CMUT array (74) is provided. The acoustic lens comprising: a first layer (47) comprising a thermoset elastomer having a polymeric material selected from hydrocarbons, wherein the first layer has an inner surface (72) arranged to face the array and an outer convex shaped surface (40) arranged to oppose the inner surface; and a second layer (42) coupled to the outer surface of the first layer and comprising thermoplastic polymer polymethylpentene and an elastomer selected from the polyolefin family (POE) blended therein, wherein the outer layer located at the outer surface of the acoustic window layer, wherein the first layer has a first acoustic wave velocity (v1) and the second layer has a second acoustic wave velocity (v2), said second velocity is larger than the first acoustic wave velocity.

Abstract: A system uses range and Doppler velocity measurements from a lidar system and images from a video system to estimate a six degree-of-freedom trajectory of a target. The system estimates this trajectory in two stages: a first stage in which the range and Doppler measurements from the lidar system along with various feature measurements obtained from the images from the video system are used to estimate first stage motion aspects of the target (i.e., the trajectory of the target); and a second stage in which the images from the video system and the first stage motion aspects of the target are used to estimate second stage motion aspects of the target. Once the second stage motion aspects of the target are estimated, a three-dimensional image of the target may be generated.

Abstract: A laser sensing system includes an emitter configured to emit a laser, and a controller. The intensity of the laser is based upon power provided to the laser sensing system. The controller is configured to control the power provided to the laser sensing system, obtain feedback parameters indicative in part of molecular content of the atmosphere, and control the power provided to the laser sensing system based upon the feedback parameters.

Abstract: Systems and methods for utilizing a hybrid transmitter in an ultrasound system. A system can include a hybrid transmitter configured to transmit ultrasound waves toward a subject area. The hybrid transmitter can comprise a linear transmitter configured to generate linear transmitter output and a switching transmitter configured to generate switching transmitter output. The hybrid transmitter can also comprise a summer configured to sum the linear transmitter output and the switching transmitter output to generate hybrid transmitter output for driving a transducer load to generate the ultrasound waves transmitted towards the subject area. The ultrasound system can also comprise a receiver configured to receive one or more ultrasound waves from the subject area in response to the ultrasound waves transmitted toward the subject area for generating ultrasound images of the subject area.

Abstract: A set of signals are sampled at the LiDAR system and the set of signals are converted to a frequency domain to generate a set of sampled signals in the frequency domain. The set of signals are received consecutively over time. A set of first functions are created based on the set of sampled signals. The set of first functions are averaged to generate a second function. The second function represents a power spectrum density estimate of the set of signals. A peak value of the second function is detected to determine range and velocity information related to a target based on a corresponding frequency of the peak value of the second function.

Abstract: An image with the sound speed in reception beamforming being changed is generated with a small amount of calculation. A conversion unit 41 converts first real space image data into first wave number space data in a wave number space. A remapping processing unit 42 processes the first wave number space data to generate data equivalent to second wave number space data. A reconversion unit 43 generates a second real space image by inversely converting data equivalent to the second wave number space data.

Abstract: A LIDAR system, preferably including one or more: optical emitters, optical detectors, beam directors, and/or processing modules. A method of LIDAR system operation, preferably including: determining signals, outputting the signals, receiving one or more return signals, and/or analyzing the return signals.

Abstract: A light detection and ranging (LIDAR) system includes a first optical source to provide a first optical beam and a second optical source to provide a second optical beam. A light detection sensor detects a position of the first optical beam and the second optical beam relative to each other and to a reference pattern on a light detection sensor. Alignment optics may be located between the light detection sensor and the first optical source and the second optical source, and may include one or more optical components adjustable to shift each optical beam on the light detection sensor. A control system, including one or more processors, is coupled to the alignment optics and the light detection sensor, and causes the alignment optics to shift the first optical beam and the second optical beam on the light detection sensor according to the reference pattern.

Abstract: A three-dimensional prediction method based on geology-seismology for a favorable metallogenic site of a sandstone-type uranium deposit is provided, including: determining a to-be-explored area and a target stratum in the to-be-explored area; setting a seismic line in the to-be-explored area, so as to acquire seismic data of a profile where the seismic line is located; delineating a depression region and a target region in the profile; determining a dip angle of a stratum in the target region and a dip angle of a stratum underlying the target region according to the seismic data, where the stratum underlying the target region is within the depression region; determining a distribution of fractures in the target region and the depression region according to the seismic data; and delineating a uranium deposit metallogenic site in the target region.

Abstract: The present disclosed subject matter relates to a method for measuring the distance of targets in the surroundings by way of a time-of-flight measurement of pulses reflected at said targets, in particular laser pulses, said method comprising: emitting a sequence of transmission pulses having varying pulse intervals, and receiving at least one receive pulse after each one of two different transmission pulses; for each receive pulse: generating a group of M candidate distances, each based on a different transmission pulse among M transmission pulses preceding the receive pulse, wherein each candidate distance is assigned to the corresponding transmission pulse on which it is based; for each candidate distance: determining a weighting value on the basis of at least the closest of the candidate distances assigned to such a transmission pulse which is adjacent to the transmission pulse to which the candidate distance being considered in this determining process is assigned; for each group: selecting the candidate