Code phase acquisition of direct-sequence spread-spectrum signal with decision by offset timings

摘要

Initial acquisition of spreading code phase in direct-sequence spread-spectrum (DS/SS) system is decided using a peak output power level of passive or active correlator. We present here, however, decision using offset timings of peak outputs. Simulation arid numerical results show that the correct acquisition time of the proposed method is better than that of the conventional scheme when SNR is low. The circuit volume of the proposed method is expected to he less than that of the conventional one.