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:
Jun. 29, 2021

Filed:

Mar. 21, 2019
Applicant:

Steradian Semiconductors Private Limited, Bangalore, IN;

Inventors:

Apu Sivadas, Bangalore, IN;

Gireesh Rajendran, Bangalore, IN;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/64 (2006.01); G01S 13/532 (2006.01); G01S 13/86 (2006.01); G01S 7/35 (2006.01); G01S 13/58 (2006.01); G01S 7/40 (2006.01);
U.S. Cl.
CPC ...
G01S 13/64 (2013.01); G01S 7/354 (2013.01); G01S 13/532 (2013.01); G01S 13/582 (2013.01); G01S 13/86 (2013.01); G01S 7/4073 (2021.05);
Abstract

A multichannel radar system comprising a set of antennas each receiving a sequence of chirps reflected from plurality of objects, a range detector generating a set of range bins for each chirp, a beam former operative to generate a set of dominant frequency components from a group of range bins picked from the set of range bins across the set of antennas, a nearness detector for separating the set of dominant frequencies into a first set of dominant frequencies and a second set of dominant frequencies, a frequency subtractor configured to shift the each dominant frequency in the first set of dominant frequencies by its phase by a first value to form a third set of phase shifted dominant frequencies, and a Doppler estimator estimating a Doppler frequency of the each dominant frequency in the set of dominant frequencies from the third set of phase shifted dominant frequencies and the second set of dominant frequencies.


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