DS-SS/BPSK Signal Detection With Delay Multiplication Multi-correlation Based on Over-sampling
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摘要:
提出一种基于过采样的直接序列扩谱(Direct—Sequence Spread Spectrum,DS—SS)/二进制相移键控(Binary Phase Shift Keyed,BPSK)信号延迟相乘多重相关检测方法,并推导了延迟相乘相关原理,分析了基于过采样的延迟相乘相关方法对输出信噪比(Signal to Noise Ratio,SNR)的影响。理论推导和仿真证明,基于过采样的延迟相乘恢复DS—SS/BPSK信号载波方法保留了待测信号中噪声的高斯白噪声特性;采用多重相关的方法还可进一步提高输出信噪比。
Abstract:
The DS-SS/(Binary Phase Shift Keyed,BPSK) signal detection approach with delay multiplication multi-correlation is proposed in this paper.The principium of delay multiplication correlation is deduced;the influence on output SNR(Signal to Noise Ratio) rela