US 12,345,802 B2
Doppler processing in frequency-modulated continuous wave radar systems using dither
Sandeep Rao, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jan. 2, 2024, as Appl. No. 18/401,920.
Application 18/401,920 is a continuation of application No. 17/132,462, filed on Dec. 23, 2020, granted, now 11,899,095.
Claims priority of application No. 202041040230 (IN), filed on Sep. 17, 2020.
Prior Publication US 2024/0134034 A1, Apr. 25, 2024
Prior Publication US 2024/0230880 A9, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 13/58 (2006.01); G01S 7/35 (2006.01); G01S 13/34 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/584 (2013.01) [G01S 7/352 (2013.01); G01S 13/34 (2013.01); G01S 13/931 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a radar sensor configured to generate range data based on received radar signals; and
a processor configured to:
perform a first Doppler Fourier Transform (Doppler-FT) on the range data to provide a first Doppler-FT representation,
identify a dominant peak in the first Doppler-FT representation,
determine phase noise associated with the dominant peak,
modify the range data using the determined phase noise to provide modified range data, and
perform a second Doppler-FT on the modified range data to provide a second Doppler-FT representation.