The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
May. 13, 2019
GM Cruise Holdings Llc, San Francisco, CA (US);
Zhi Yuan Sherwin Lau, San Francisco, CA (US);
GM Cruise Holdings LLC, San Francisco, CA (US);
Abstract
One or more radar sensors coupled to a vehicle receive readings during a calibration time period. Each radar sensor receives data covering a field of view of the sensor, which may be split into angle-based bins. A noise-reducing filter (e.g., median filter) may be applied. A function is generated by processing raw radar cross section (RCS) returns into values plotted against angles compared to the direction that the sensor is facing. The function may be smoothed. Radar sensor measurements captured after calibration are corrected using the function, for example by automatically subtracting or dividing amounts corresponding to the function.