基于二阶统计量的无线电引信信号盲分离

采用二阶盲辨识方法对无线电引信信号进行分离。首先对信号进行预白化处理，求取白化矩阵。然后对多个不同延迟的信号相关矩阵采用Givens旋转的方法进行联合对角化，求取酉矩阵。通过白化矩阵和酉矩阵求得混合矩阵的估计，完成对信号的分离。最后通过计算机仿真，对多个在频域无法正确分离的无线电引信信号进行了盲分离，仿真结果非常理想，说明基于二阶盲辨识的无线电引信信号分离算法是正确的。

Blind Signal Separation of Radio Fuze Based on Second Order Statistics

This paper takes BSS(blind signal separation) method based on SOS(second order statistics) to se-parate the radio fuze signals.First,we pre-whiten the signals and obtain the whiten matrix.Then,we jointly diagonalize the correlation matrixes of different delays signal by Givens rotation method to get the unitary matrix,and estimate the mixed matrix by the whitening matrix and unitary matrix.Finally,computer simulation is used to separate several radio fuze signals which can't be separated correctly in frequency domain.The result is ideal,which indicates the radio fuze signal separation algorithm based on SOS is correct.