Multichannel receiver for spread-spectrum signal - provides correlation of scanning values with code simulated in code control circuit

摘要

The receiver has a mixer for conversion of a signal into an IF position, and a generator of a quantised sequence of scanning values with a given period. There are correlation elements (20, 30, 40, 50, 60) for recovery of PRN codes from the quantised signal and for carrier signals in respective control circuits. The correlation elements carry out the correlation of each scanning value with the code similated in the code control circuit of all channels. The same applies for the correlation of each scanning value with carrier signals in the carrier control circuit during the scanning period. In the respective circuits are also formed quadrature components (64), processed in an integration stage (80). USE/ADVANTAGE - Receiver of spread-spectrum signals, e.g. navigation systems, with reduced signals losses for each received channel.