US 12,066,534 B2
System and method for precision spin measurement using autocorrelation
Jared Smothermon, Lucas, TX (US); James K. McCoy, Garland, TX (US); and Robert S. Gammenthaler, Princeton, TX (US)
Assigned to APPLIED CONCEPTS, INC., Richardson, TX (US)
Filed by Applied Concepts, Inc., Richardson, TX (US)
Filed on May 25, 2022, as Appl. No. 17/824,467.
Application 17/824,467 is a continuation of application No. 16/662,612, filed on Oct. 24, 2019, granted, now 11,346,945.
Application 16/662,612 is a continuation of application No. 16/511,106, filed on Jul. 15, 2019, granted, now 10,935,657, issued on Mar. 2, 2021.
Claims priority of provisional application 62/844,378, filed on May 7, 2019.
Prior Publication US 2022/0283302 A1, Sep. 8, 2022
Int. Cl. G01S 17/04 (2020.01); G01S 7/35 (2006.01); G01S 7/40 (2006.01); G01S 7/41 (2006.01); G01S 17/88 (2006.01)
CPC G01S 17/04 (2020.01) [G01S 7/41 (2013.01); G01S 17/88 (2013.01); G01S 7/354 (2013.01); G01S 7/356 (2021.05); G01S 7/4008 (2013.01); G01S 7/4021 (2013.01); G01S 7/415 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining spin of an object comprising:
transmitting a radar signal towards the object from a radar transmitter;
receiving a reflected signal from the object;
identifying a component spectrum of the reflected signal and at least one shoulder frequency of the component spectrum; and
performing a correlation process on the reflected signal using the component spectrum and the shoulder frequency to generate an estimate of a spin of the object as a function of the correlation process and a lag of one or more peaks in the component spectrum.