Second-order moment of autocorrelation for signal detection in non-cooperative DS/SS communication
SHA Zhi-chao, WU Hai-bin, REN Xiao-tian, HUANG Zhi-tao, ZHOU Yi-yu
Journal of Systems Engineering and Electronics . 2013, (8): 1602 -1606 .  DOI: 10.3969/j.issn.1001-506X.2013.08.03