Patent ID: 7142589

Claim:
A method for reducing the effects of multipath signal components associated with a received direct path signal comprising a carrier frequency that is modulated by a repetitive pseudo-random noise (PRN) code, comprising the steps of: generating a replica code corresponding to the pseudo-random noise (PRN) code of the received signal; correlating the received signal with the replica code to generate a first correlation result with a first, delay time, where the first delay time is set outside of the assumed correlation function area; correlating the received signal with the replica code to generate a second correlation result with a second delay time, where the second delay time is set between the first delay time and assumed correct delay time of the correlation function determining if the correlation results of the first and second delay times are substantially equal to each other and, if the first and second correlation results are not substantially equal to each other, adjusting the correlation timing so as to cause the first and second correlation results to be substantially equal to each other.