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该文提出了一种正交分路周期相关的检测算法,该算法不仅对BPSK扩频调制信号检测效果明显,而且对QPSK扩频调制也是有效的.计算机的模拟结果表明,该检测结构在信噪比SNR=-15dB时仍然具有良好的检测能力.“,”A quadrate correlate detection algorithm for DS-SS signal is presented. The algorithm can detect effectively both BPSK and QPSK spread spectrum signals The analytical results in the paper are confirmed by computer simulation. The simulation results show that the algorithm can detect DS-SS signals with the input -15dB SNR