Method of determining a closed-loop control error in a pseudorandom code tracking loop

摘要

The method involves determining a signal representing energy of correlation between a received signal and a replica signal. The shift between a determined signal (S-D) and centered signal (S-C) on a current control position is searched by detecting break of slope of the determined signal, where the centered signal represents auto-correlation energy of a pseudo random code. The searched shift corresponds to a code tracking error.