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:
Apr. 21, 2026

Filed:

Feb. 05, 2024
Applicant:

Axis Ab, Lund, SE;

Inventors:

Sebastian Heunisch, Lund, SE;

Santhosh Nadig, Lund, SE;

Assignee:

AXIS AB, Lund, SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 7/35 (2006.01); G01S 7/41 (2006.01);
U.S. Cl.
CPC ...
G01S 7/354 (2013.01); G01S 7/41 (2013.01);
Abstract

A method for identifying that a first FMCW radar unit is subject to parallel incoherent interference from a second FMCW radar unit is disclosed. The method comprises: acquiring a range-Doppler map, calculating a range-resolved signal for a negative half (corresponding to negative Doppler shifts) and a positive half (corresponding to positive Doppler shifts) of the range-Doppler map, and calculating a range-dependent noise profile for the range-Doppler map as, for each range interval, the smaller of the range-resolved signal for the negative half and the positive half. The method further comprises: identifying parallel incoherent interference in the range-Doppler map if a measure of a deviation between the range-resolved signal for the negative half and the positive half is smaller than a predetermined deviation threshold, and a measure of a difference between the range-dependent noise profile and a global noise floor of the range-Doppler map exceeds a predetermined noise threshold.


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