作者: Edmund S. Zavada , Gregory Schluge
DOI:
关键词: Phase-locked loop 、 Synchronous circuit 、 Delay-locked loop 、 Control theory 、 Spread spectrum 、 Offset (computer science) 、 Physics 、 Clock domain crossing 、 Global Positioning System 、 Phase shift module
摘要: A global positioning system (GPS) receiver includes a phase locked loop that locks to the carrier signal from GPS satellite at an offset frequency in order recover data. The shifter (60) driven by clock (13) through synchronous inversion circuit (50). of is periodically inverted synchronously with respect compensate for so does not lose lock because error.