A Detection Method for DS/SS Signal in the Low SNR Condition
Wen Zhijin · Modern Electronic Technique · 2005
In this paper, we propose a new detection method based on correlation to solve the difficulty of detecting DS/SS signal with low SNR, especially QPSK DS/SS signal It picks up the energy of selfcorrelation function in the centralized time quantum to process, so that the performance of detection is improved The results of computer simulations show that when the SNR is -12 dB in the bandwidth of signal, the method can detect not only QPSK DS/SS signal but also BPSK DS/SS signal effectively