US 12,405,386 B2
Method for adjusting a phase of a carrier replica signal
Carmine D'Alessandro, Thalwil (CH)
Assigned to u-blox AG, Thalwil (CH)
Filed by u-blox AG, Thalwil (CH)
Filed on Feb. 7, 2023, as Appl. No. 18/165,615.
Claims priority of application No. 22156334 (EP), filed on Feb. 11, 2022.
Prior Publication US 2023/0258819 A1, Aug. 17, 2023
Int. Cl. G01S 19/29 (2010.01)
CPC G01S 19/29 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method for adjusting a phase of a carrier replica signal, the method comprising:
receiving, by a tracking loop, a digital baseband signal,
generating within the tracking loop the carrier replica signal,
generating within the tracking loop a sequence of samples from the digital baseband signal and the carrier replica signal,
controlling a phase of the carrier replica signal depending on the sequence of samples,
receiving a trigger signal indicating an upcoming phase shift of the digital baseband signal,
blanking the tracking loop and controlling the phase of the carrier replica signal using a constant value,
determining a magnitude of the phase shift,
adjusting the phase of the carrier replica signal using the determined magnitude of the phase shift, and
un-blanking the tracking loop and controlling the phase of the carrier replica signal depending on the sequence of samples.