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高阶统计量在信号处理中成功的应用例子之一是估计高斯相关噪声中非高斯信号的时延参数.本文则研究非高斯相关噪声中高斯信号的时延估计问题,提出了一种解决该问题的混合方法.该方法先计算观测值的三阶累积量,然后利用累积投影公式计算观测噪声的二阶统计量,最后利用互相关方法确定信号时延参数.仿真结果验证了该方法的有效性.
One of the successful applications of high order statistics in signal processing is estimating the delay parameters of non-Gaussian signals in Gaussian correlation noise.In this paper, we study the problem of time delay estimation of Gaussian signals in non-Gaussian correlation noise, This method firstly calculates the third-order cumulant of the observed value, then calculates the second-order statistic of the observed noise by using the cumulative projection formula, and finally determines the signal delay parameter by using the cross-correlation method. The simulation results show that the method is effective Sex.