【摘要】 文章介绍了一种利用高阶累积量进行时延估计的新方法。利用四阶累积量代替二阶相关函数，可以克服相关法在相关高斯噪声干扰中估计性能下降的缺点。新方法可以利用FFT进行快速运算。计算机仿真结果表明，当存在高斯相关噪声干扰时，该方法的估计性能优于广义相关法。更多还原

【Abstract】 ： A time delay estimation method based on higher－order cumulant is introduced in this paper．The shortcoming of the cross correlation method when spatially correlated Gaussian noises exist can be overcome by using fourth－order cumulant instead of second－order correlation function．FFT can be used to implement the method very fast．The computer simulation results indicate that the method in this paper prevails over generalized cross correlation method when spatially correlated Gaussian noises exist．更多还原