Abstract: Method, apparatus, and computer program product example embodiments provide short-range communication based location finding. According to an example embodiment of the invention, a method comprises receiving, by a first transceiver of an apparatus mounted on a moveable platform, from a remote device, one or more wireless packets including information packets containing angle of arrival information from the remote device, wherein the moveable platform is in motion relative to the remote device; determining in the apparatus, at least a first angle of arrival from the received angle of arrival information; and generating distance estimation data in the apparatus relative to the remote device, based on the determined first angle of arrival.

Abstract: A method for setting a detection threshold for a received signal of a frequency-modulated continuous-wave radar sensor of a motor vehicle is disclosed. In successive measuring cycles of the radar sensor in each case a radar signal is emitted into a capture zone of the radar sensor and a received signal is received, in each measuring cycle a frequency spectrum relating to the respective received signal is determined, wherein individual frequency bins of the frequency spectrum each correspond to a signal level in a range-resolution cell, and the detection threshold is set individually in each case for a subset consisting of at least one frequency bin, and in order to set the detection threshold, a noise level is determined from frequency bins of temporally preceding measuring cycles and/or from frequency bins of adjacent Doppler-resolution cells of the frequency spectrum.

Abstract: The invention relates to a brake panel (3, 3?) for a projectile (1), in which those surfaces (A) of the brake panel (3, 3?) which are facing in the direction of travel of the projectile are wholly or partially angled in such a way that the normal from the said surfaces (A) is not parallel with the center line (C) of the projectile (1) in order to reduce or counteract the Magnus torque generated during and after the extension of the brake panel (3, 3?). The invention further relates to a detonator (2) for a projectile (1) and a projectile (1) comprising such a brake panel.

Abstract: Utility locators for determining information associated with a buried utility are disclosed. The utility locator includes magnetic field antenna elements and processing circuits to determine information associated with a buried utility based at least in part on received magnetic field signals emitted from the buried object. The locator may include one or more modules to receive map information and/or annotate reference objects with the map information on a display of the locator.

Abstract: The present disclosure is directed to a system and method for determining an ownship position of an aircraft. The method includes the steps of receiving data from a plurality of proximate aircraft and examining the data. Next, the method involves selecting a plurality of reference aircraft from the plurality of proximate aircraft, and receiving data from each reference aircraft. The data received from the reference aircraft is then correlated to a common time in order to create a reference frame for calculating the position of the aircraft. The next step of the method is to calculate the ownship position of the aircraft based on the data received from the reference aircraft and the common time. The system includes a receiver, processor, display, and transmitter, which are used to determine the ownship position of an aircraft.

Abstract: A radar system that includes a gimbal and a platform secured to a frame through the gimbal is disclosed. The radar system includes an antenna rotatably supported by the platform for rotation about an axis and configured to scan a hemispherical field of view above the platform. A controller that controls the rotation of the antenna and a gyroscopic stabilizer that is secured to the platform to maintain the platform in a stable and level position during operation of the radar system and rotation of the antenna is also disclosed. A vehicle is also disclosed for traversing a geographic region with the radar system. The antenna may transmit in the X band. A telescoping mast having a first end secured to the platform and having a second end secured to the gimbal is also disclosed.

Abstract: A sensor for a missile seeker includes a primary, concave, reflector that is reflective to RF waves and to another kind of waves, but that includes a transmissive region, through which RF waves can pass. A secondary, convex, reflector is reflective to RF waves but transmissive, and not reflective, to the other kind of waves, and is arranged facing the primary reflector to further reflect RF waves reflected by the primary reflector through the transmissive region of the primary reflector. An RF detector is arranged on the opposite side of the primary reflector from the secondary reflector and arranged to detect the RF waves reflected by the secondary reflector through the transmissive region of the primary reflector. A second detector, for detecting the other kind of waves, is arranged on the opposite side of the secondary reflector from the primary reflector and is arranged to detect the other kind of waves after they are reflected by the primary reflector and transmitted through the secondary reflector.

Abstract: A land-based Smart-Sensor System and several system architectures for detection, tracking, and classification of people and vehicles automatically and in real time for border, property, and facility security surveillance is described. The preferred embodiment of the proposed Smart-Sensor System is comprised of (1) a low-cost, non-coherent radar, whose function is to detect and track people, singly or in groups, and various means of transportation, which may include vehicles, animals, or aircraft, singly or in groups, and cue (2) an optical sensor such as a long-wave infrared (LWIR) sensor, whose function is to classify the identified targets and produce movie clips for operator validation and use, and (3) an IBM CELL supercomputer to process the collected data in real-time. The Smart Sensor System can be implemented in a tower-based or a mobile-based or combination system architecture. The radar can also be operated as a stand-alone system.

Abstract: An in-vehicle radar apparatus includes a transmission and reception means which transmits a radar wave ahead of an own vehicle and receives a reflected wave corresponding to the radar wave from a target; a reception strength detection means which repeatedly detects reception strength of the reflected wave; a distance detection means which repeatedly detects a distance from the own vehicle to the target; an approximate expression calculation means which calculates an approximation expression expressing the reception strength using the distance as a variable from the reception strength repeatedly detected by the reception strength detection means and the distance repeatedly detected by the distance detection means; and a determination means which determines a height of the target from a road surface based on values of coefficients of the approximation expression.

Abstract: The present invention is directed to a system and related method providing high speed wireless data connectivity between a vehicle and a temporary stationary location for the vehicle. The system comprises at least three steerable antennas configured for transmission and reception of a broadband RF signal. A first antenna is mounted to the temporary stationary location to send and receive data from one data source available to the system. A second steerable antenna mounted near the temporary location and third steerable antenna mounted to the vehicle provides a communication link between the temporary location and the vehicle. The systems disclosed herein may enable a RF node capable of accepting fiber, cable and satellite modem inputs and communicating wireless gigabit data to a transceiver on the vehicle.

Abstract: A super regenerative receiver detection system and method that includes a computing system that stores and executes a cross modulation correlation component to modulate a radio-frequency (RF) stimulation signal that is transmitted in an area using a modulating signal having a first modulating mode, and receive a response UEE signal from the area in which the response UEE signal includes a cross modulated signal emitted from a super regenerative receiver (SRR). The cross modulated signal having a second modulation mode that is different from the first modulation mode. Using this information, the cross modulation correlation component processes the received UEE signal to determine a cross modulation correlation level of a cross modulation signal relative to the modulating signal, and generates an alert signal when the determined cross modulation correlation level exceeds a specified threshold.

Abstract: A multi-function radio frequency (MFRF) module integrates command guidance, active and semi-active terminal guidance (and possibly passive) and fuzing sensors for gun-launched munitions into a single assembly. The MFRF module can be incorporated into a variety of different gun-launched munitions to execute missions currently performed by guided missiles. The MFRF module is programmable during munition activation to select the guidance mode, active or semi-active, and a primary fuze mode, proximity or height of burst.

Abstract: A data collection device carried on board a satellite and making it possible to localize a source of interference, without using neighboring satellites, comprises: a reception device able to receive the frequency on the ground of the interference; at least three antenna points arranged on the satellite so as to be able to receive a radiofrequency signal coming from the target surface; a processor able to determine the amplitude of the interference signal at the level of each of the antenna points; a connection device able to connect successively each of the antenna points to the processor.

Abstract: The effective use of weak GPS signals that are present in various environments enables an electronic device to pinpoint its location in such environments. The electronic device uses an antenna to perform sequential scanning in multiple directions for global positioning system (GPS) signals. The electronic device further analyzes GPS signals obtained from scanning the multiple directions to determine a number of acquired GPS satellites that provided the GPS signals. The GPS signals include code phases of the acquired GPS satellites. The electronic device then computes a location of the electronic device based on the code phases of the acquired GPS satellites when the number of acquired GPS satellites meets a threshold.

Abstract: A method for mitigating interference using a phased array receiving antenna is provided. The method includes perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first composite beam and a second composite beam, cross-correlating the first composite beam and the second composite beam, receiving communications data using the first composite beam and the second composite beam, and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.

Abstract: Method to estimate parameters derived at least from GNSS signals useful to determine a position, including obtaining at least one GNSS signal observed at a GNSS receiver from each of a plurality of GNSS satellites; receiving global correction information useful to correct at least the obtained GNSS signals from a first set of GNSS satellites, wherein the global correction information includes correction information which is independent from the position to be determined; receiving local correction information useful to correct at least the obtained GNSS signals from a second set of GNSS satellites, wherein the local correction information includes correction information which is dependent on the position to be determined; processing the obtained GNSS signals from the first set of GNSS satellites by using the global correction information; and processing the obtained GNSS signals from the second set of GNSS satellites by using the local correction information.

Abstract: A locating device disposable on a surface has a housing, a capacitance sensor, a radar sensor, and an inductance sensor. The locating device also has a motion sensor disposed for detecting at least one motion parameter. A controller receives data from the capacitance sensor, the radar sensor, the inductance sensor and the motion sensor, and determines from the data a presence of objects disposed within or behind the surface. A display is used for displaying a graphical representation of the objects disposed within or behind the surface.

Abstract: The present invention relates to a system and method using hybrid spectral compression and cross correlation signal processing of signals of opportunity, which may include Global Navigation Satellite System (GNSS) as well as other wideband energy emissions in GNSS obstructed environments. Combining spectral compression with spread spectrum cross correlation provides unique advantages for positioning and navigation applications including carrier phase observable ambiguity resolution and direct, long-code spread spectrum signal acquisition. Alternatively, the present invention also provides unique advantages for establishing the validity of navigation signals in order to counter the possibilities of electronic attack using spoofing and/or denial methods.

Abstract: A device is disclosed that is capable of determining its location using high-power with high accuracy, and using low-power with lower accuracy. By coordinating usage between the high power method and the low power, overall power consumption of the device can be significantly reduced without a significant reduction in accuracy. Such high accuracy may be achieved through the use of a GNSS unit, such a GPS receiver. In addition, the low-power alternative may be achieved using an accelerometer, together with software, hardware or firmware for extrapolating a speed based on the force measurements by the accelerometer. In this manner, the GPS receiver can be operated for only a fraction of overall use, primarily to provide adjustment data necessary to calibrate usage of the accelerometer.

Abstract: The present invention provides an innovative apparatus and system for onboard spacecraft location determination and celestial navigation by employing spectral observations of extrasolar planetary star system motion. In one apparatus embodiment a gas absorption cell is placed between a sensor and the light from a reference star system with at least one exoplanet, such that the sensor can detect the spectrum through the gas absorption cell. Radial velocities can be calculated via Doppler Spectroscopy techniques and incorporated into a spacecraft navigation solution. The present invention can enable and enhance significant mission capabilities for future manned and unmanned space vehicles and missions.