The detection methods of DSSS/QPSK signal based on the fourth-order moment
Zhijin Zhao, Wu Jia, Chunyun Xu · 2006
Abstract:- An accumulation detection method based on the fourth-order moment),0,0(4 τxm in time domain for the DSSS signal is proposed. Experimental results show that the detection performance of the accumulation method is better than that of the non-accumulation method. It can effectively detect the DSSS signal modulated by QPSK at SNR-16dB. The computation complexity of the method is low and it is easy to implement.