20240053437. RADAR SYSTEM WITH COORDINATE CALIBRATION FOR IMPROVED ANGULAR RESOLUTION simplified abstract (Zadar Labs, Inc)
Contents
RADAR SYSTEM WITH COORDINATE CALIBRATION FOR IMPROVED ANGULAR RESOLUTION
Organization Name
Inventor(s)
Mohammad Emadi of San Jose CA (US)
Ali Mostajeran of Morgan Hill CA (US)
Mahmoud Saadat of Redwood City CA (US)
RADAR SYSTEM WITH COORDINATE CALIBRATION FOR IMPROVED ANGULAR RESOLUTION - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240053437 titled 'RADAR SYSTEM WITH COORDINATE CALIBRATION FOR IMPROVED ANGULAR RESOLUTION
Simplified Explanation
The disclosed patent application describes systems and methods for radar networking to improve angular resolution. The innovation involves using a first radar and a second radar attached to a vehicle or another appropriate platform. Coarse beamforming is performed from each radar to detect a landmark and determine its rough location in the coordinates of both radars. The radar network is then calibrated by setting the first radar's location as the reference and determining the second radar's location relative to it. This calibration compensates for any phase differences that may arise from positional or timing misalignment between the radars. After calibration, fine beamforming is performed on the calibrated radars, and the data from the fine beamforming is processed with the pre-detected target data to cancel out grating lobes.
Potential applications of this technology:
- Improved radar systems for vehicles, such as autonomous cars, to enhance their perception capabilities and object detection accuracy.
- Military applications for target detection and tracking, providing more accurate information for situational awareness and threat assessment.
- Surveillance systems for border control or perimeter security, enabling better detection and tracking of intruders or suspicious activities.
Problems solved by this technology:
- Limited angular resolution of radar systems can lead to inaccurate object detection and tracking.
- Relative positional or timing misalignment between radars can introduce phase differences, affecting the accuracy of the radar network.
- Grating lobes can cause false detections or reduce the precision of radar systems.
Benefits of this technology:
- Improved angular resolution allows for more precise detection and tracking of objects.
- Calibration of the radar network compensates for misalignment, ensuring accurate data fusion.
- Cancelling out grating lobes enhances the accuracy and reliability of radar systems.
Original Abstract Submitted
disclosed herein are systems and methods for radar networking for improved angular resolution. in an embodiment, a radar network includes a first radar and a second radar attached to a vehicular platform or another appropriate platform. through coarse beamforming from each radar, a landmark is detected. the landmark's rough location in the first radar's coordinate and the landmark's rough location in the second radar coordinate are determined. the radar network is calibrated, by setting the first radar's location as the reference location and determining the second radar's location relative to it. phase differences that may arise from relative positional or timing misalignment between the radars may be compensated. fine beamforming is performed on the calibrated radars, and data from the fine beamforming is processed with the pre-detected target data to cancel out grating lobes.
