Reduction of multi-path errors in spread spectrum receiver position determination application

摘要

(57) relates to a technique for processing the signal to be applied in particular to the receiver of the radio frequency signal having [summary] pseudo-random noise (PRN) code, the position determination of the application. Signal corresponding to the PRN code, to reduce the position error is used to decrypt the received signal is locally generated, occurs when the radio frequency signal (delay) is present multipath. The receiver of the present invention and an important application of signal processing techniques, used global positioning system to (GPS), in this case, the multiple signals sent from satellites of several simultaneously received and processed, it is possible to obtain information on the movement or position of the receiver. It is locked to direct signals from one satellite, a delay locked loop which is provided for processing multiple channels of each receiver (DLL) correlator, significantly reduce the effects of multipath signals.