US 11,656,325 B2
Methods and apparatus to realize scalable antenna arrays with large aperture
Mohammad Amin Arbabian, Stanford, CA (US); and Babak Mamandipoor, San Jose, CA (US)
Assigned to The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US)
Appl. No. 16/955,757
Filed by The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
PCT Filed Dec. 19, 2018, PCT No. PCT/US2018/066598
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/126386, PCT Pub. Date Jun. 27, 2019.
Claims priority of provisional application 62/607,660, filed on Dec. 19, 2017.
Prior Publication US 2021/0011121 A1, Jan. 14, 2021
Int. Cl. G01S 7/40 (2006.01); G01S 7/41 (2006.01); G01S 13/00 (2006.01)
CPC G01S 7/40 (2013.01) [G01S 7/411 (2013.01); G01S 13/003 (2013.01); G01S 7/4091 (2021.05)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, at a processor, cross module information, the cross module information including target profile information obtained from radar returns received at a first radar module and transmitted by a second radar module; and
determining, at the processor, a frequency correction, a time correction, and/or a phase correction to enable correction of errors caused in part by the first radar module and/or the second radar module, the determining based at least on the received cross module information, wherein the determining of the phase correction is based at least on phase variation obtained from at least the target profile information, in-module measurement information, and/or scene information, and wherein the phase variation may be obtained by a phase of a selected target in a scene estimated over a plurality of delay profiles.