US 11,719,807 B2
Phase-accurate vehicle positioning systems and devices
Daniel W. Bliss, Scottsdale, AZ (US)
Assigned to Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (US)
Appl. No. 16/767,043
Filed by Daniel W. Bliss, Scottsdale, AZ (US)
PCT Filed Dec. 20, 2018, PCT No. PCT/US2018/066763
§ 371(c)(1), (2) Date May 26, 2020,
PCT Pub. No. WO2019/126476, PCT Pub. Date Jun. 27, 2019.
Claims priority of provisional application 62/608,500, filed on Dec. 20, 2017.
Prior Publication US 2020/0319330 A1, Oct. 8, 2020
Int. Cl. G01S 13/84 (2006.01); G01S 7/00 (2006.01); H04W 4/02 (2018.01)
CPC G01S 13/84 (2013.01) [G01S 7/003 (2013.01); H04W 4/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radio frequency (RF)-based positioning device, comprising:
an RF receiver;
a signal processor operable to:
receive a receive (RX) signal from the RF receiver, the RX signal comprising a carrier signal, timing information, a reference signal, and an envelope
modulation;
estimate an RX time-of-arrival of the RX signal and a time offset between the RF receiving and the signal processor based on the timing information and the reference signal;
based on the estimated time of arrival and the time offset, resolve a phase of the carrier signal; and
determine a position state based on the resolved phase of the carrier signal.