ACQUISITION OF SYNCHRONIZATION IN A SPREAD SPECTRUM COMMUNICATIONS TRANSCEIVER

摘要

A receiver (figure 2) comprises a correlator (40) configured to receive a signal to generate a plurality of correlation peaks (62). A peak processor (58) processes the generated correlation peaks to generate an output signal (66). An acquisition circuit (42) coupled to receive the output signal (66) of the peak processor (58) for calculating an expected position of each correlation peak in accordance with said predefined sync sequence, determining a correlation quality at said expected position of each of said accordance with said predefined sync sequence, determining a correlation quality at said expected position of each of said accordance with said predefined sync sequence, determining a correlation quality at said expected position of each of said correlation peaks and evaluating said quality and declaring synchronization if said evaluation exceeds a predetermined criteria.