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.

Date of Patent:
Jan. 28, 2025

Filed:

Mar. 18, 2022
Applicant:

Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);

Inventors:

Pu Wang, Cambridge, MA (US);

Sian Jin, Cambridge, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/02 (2006.01); G01S 7/35 (2006.01);
U.S. Cl.
CPC ...
G01S 7/0232 (2021.05); G01S 7/354 (2013.01);
Abstract

A radar system for tracking an object in a scene by transmitting frequency modulated continuous wave (FMCW) is provided. The radar system is configured to collect radar measurements of the scene sampled in a time-frequency domain within an intermediate frequency (IF) bandwidth to which reflection of the transmitted FMCW is shifted by mixing with a copy of the FMCW, where a frequency dimension of the time-frequency domain is quantized into multiple frequency bins forming the frequency bandwidth, where a time dimension of the time-frequency domain is quantized into multiple time instances forming a time interval corresponding to the PRI, count a number of amplitude peaks of the radar measurements for each frequency bin at different instances of time, identify a number of frequency bins with their counts of the number of peaks above a pre-determined threshold, and determine at least a distance to the object based on frequency analysis of the radar measurements.


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