US 11,733,364 B2
Target ranging with subsampled noise correlation
Seth D. Cohen, Birmingham, AL (US); and Aubrey Beal, Huntsville, AL (US)
Assigned to Kratos SRE, Inc., San Diego, CA (US); and The University of Alabama in Huntsville, Huntsville, AL (US)
Filed by KRATOS SRE, Inc., San Diego, CA (US); and The University of Alabama in Huntsville, Huntsville, AL (US)
Filed on May 21, 2021, as Appl. No. 17/327,403.
Claims priority of provisional application 63/028,389, filed on May 21, 2020.
Prior Publication US 2021/0364617 A1, Nov. 25, 2021
Int. Cl. G01S 13/10 (2006.01); H03K 3/037 (2006.01); G01S 7/282 (2006.01); H03K 5/01 (2006.01); H03K 5/00 (2006.01)
CPC G01S 13/106 (2013.01) [G01S 7/282 (2013.01); H03K 3/037 (2013.01); H03K 5/01 (2013.01); H03K 2005/00078 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radar comprising:
storage circuitry comprising a first tap, wherein the storage circuitry is configured to transmit a first signal comprising switching frequencies defining digital transitions of the first signal, wherein the switching frequencies comprise a maximum switching frequency, wherein the maximum switching frequency comprises a shortest mean period between the digital transitions of the first signal with respect to the switching frequencies, and wherein the first signal has a power spectral density that is substantially constant over a bandwidth of 20 KHz; and
a register configured to receive the first signal according to the first tap, and store a representation of the first signal according to a clock signal having a clock frequency less than the maximum switching frequency.