US 11,953,607 B2
Navigation with differential carrier phase measurement from low earth orbit satellites
Zak Kassas, Irvine, CA (US); Joe Khalife, Irvine, CA (US); and Mohammad Neinavaie, Irvine, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Jul. 2, 2021, as Appl. No. 17/367,025.
Claims priority of provisional application 63/047,796, filed on Jul. 2, 2020.
Prior Publication US 2022/0075079 A1, Mar. 10, 2022
Int. Cl. G01S 19/44 (2010.01); G01S 19/39 (2010.01)
CPC G01S 19/44 (2013.01) [G01S 19/393 (2019.08)] 20 Claims
OG exemplary drawing
 
1. A method for navigation using differential carrier phase measurement of low earth orbit (LEO) satellite signals, the method comprising:
receiving, by a device, one or more low earth orbit (LEO) satellite signals;
receiving, by the device, observables for the one or more LEO satellite signals from a base;
determining, by the device, a position estimate for the device using carrier phase determinations of the one or more LEO satellite signals received by the device and the observables from the base;
correcting, by the device, the position estimate, wherein correcting is based on an integer ambiguity resolution operation and double difference carrier phase determination for the one or more LEO satellite signals; and
determining, by the device, at least one navigation observable using a corrected position estimate.