A system for assisting the positioning, in particular the orientation, with regard to a target position, of an antenna of a beacon intended to be in communication link by radio signal with a transmitter/receiver device, the system including a system for representation of a lobe of the radiation pattern of the antenna of the beacon on a projection surface of an environment in which said beacon is intended to be installed, and a system for measuring a distance separating the beacon and at least one point on the projection surface corresponding to the target position or positions.

An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode.

A system and method to sense an environment based on data acquired by side looking radar. For example, a side looking radar is mounted on one or both sides of a ground-based vehicle and performs measurements from environment while the vehicle is moving. As the vehicle moves, a scan of the environment is therefore performed, wherein movement of the vehicle provides another dimension of information for the scan. In another example, the radar can further scan in the vertical plane at a fixed side looking angle to increase the field of view. A 3D map and localization can be determined from the scan.

A method and apparatuses may be provided for detection, tracking, and classification of one or more land, maritime, or airborne objects using a real-aperture radar mounted on a parasail airborne platform. Both wide-area and localized radar surveillance can be provided, and the radar can be either a non-coherent radar or coherent radar. A method and apparatus may use a low-cost, rotating, single-beam, non-coherent, X-band radar that is mounted on an unmanned powered parasail and operated remotely like an Unattended Airborne System (UAS). The parasail, which may be expendable or recoverable, manned or unmanned, powered or unpowered, may have a low operational cost, can carry a heavy payload, stay on station for a long time, circle or move to a specified location for surveillance, operate at an optimal altitude and look-angle, and automatically cue or manually steer an EO/IR camera to a target of interest for classification and identification.

The present disclosure generally pertains to radar determination circuitry configured to: measure a first position of a radar source and a second position of the radar source with respect to a reference coordinate system of a vehicle, wherein the first position and the second position differ from each other for synchronizing the movement of the radar source with a measurement frame including multiple chirp sequences for distinguishing multiple targets; and determine, for each of the multiple targets, a target parameter based on the synchronized movement of the radar source with the measurement frame.

A device determining method, an electronic device, and a computer-readable storage medium are provided. The method includes: determining a first angle of arrival (AOA) of a signal from a target device in a first direction and a second AOA of the signal in a second direction; acquiring a status of the signal between the terminal and the target device in response to determining that the first AOA and the second AOA are within a first preset angle range; and determining the target device as a device to be selected according to the status of the signal between the terminal and the target device.

A radar image processing device includes: an estimation unit 1 for setting, as a target pixel, each pixel of a two-dimensional map image, and estimating to which type each target pixel belongs among a pixel caused by the main lobe, a pixel due to the sidelobe, and any other pixel; a pixel value replacement unit 2 for replacing the pixel value of the pixel caused by the main lobe and the pixel value of the pixel due to the sidelobe with pixel values generated in pixel value interpolation processing based on the type of each pixel estimated by the estimation unit 1 to generate a first corrected image; a speckle noise suppression unit 3 for applying speckle noise suppression processing to the first corrected image to generate a second corrected image; and an output image generation unit 4 for generating an output image, in which speckle noise and sidelobes are suppressed, by using the two-dimensional map image, the second corrected image, and the type of each pixel.

A vehicle FMCW Doppler radar system (3) and related method using transmitter arrangement (4), a receiver arrangement (7) and at least one control unit (15). The radar system (3) is arranged to transmit signals (11), to receive reflected signals (12), and to obtain a plurality of measure results from the received reflected signals (12) along a main field of view (10) during at least two radar cycles where each radar cycle including a plurality of FMCW ramps. For each radar cycle, the control unit (15) is arranged to form a spectrum density map (30) from measuring points (14) along the main field of view (10), where each measure result results in a measuring point (14). The control unit (15) is arranged to combine at least two spectrum density maps to form a combined spectrum density map.

Techniques are disclosed for systems and methods to provide relatively accurate position data from a plurality of separate position sensors. A system includes a logic device configured to first and second position sensors each coupled to a mobile structure at respective first and second locations. The logic device is configured to receive position data corresponding to a position of the mobile structure from the position sensors, determine weighting factors corresponding to the received position data, and determine a measured position for the mobile structure based, at least in part, on the received position data and the determined weighting factors.

An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode.