一种利用矩阵谱范数的直扩信号盲同步方法

A blind synchronization procedure of DSSS signals using matrix spectrum norm

提出了一种直接序列扩频信号(Direct Sequence Spread Spectrum,DS-SS)的盲同步算法,该算法采用自相关矩阵的谱范数进行失步点估计,简单有效、误差小。理论分析及计算机仿真结果表明,该算法在低信噪比条件下可实现DS-SS信号的盲同步,进而可用于对直扩信号的参数估计。

A blind procedure is presented in the synchronization of direct sequence spread spectrum（DS-SS） signals. In order to estimate the timing offset of the synchronization point, this procedure uses the spectrum norm of the convariance matrix. The theoretic analysis and experimental results show that the new procedure can work well on the lower SNR input signals, and can be further used to estimate the parameters of DS-SS signals.