一种基于高阶累积量的信道参数估算方法

A Method for Channel Parameter Estimation Based on High Order Cumulant

本文针对短波通信过程中多径信道引起的信号衰落现象，提出了一种基于高阶累积量的信号处理方法进行信道MA模型系统辨识，得到描述信道变化特征的相关参数。通常信号具有非高斯分布特征，使用这种高阶累积量处理方法，可以有效地消除高斯噪声的影响，完成信道模型的参数估算。

With a view to the signal decay caused by multiple paths transmission in short wave com-munications, one signal processing method based on high order cumulant is proposed for chan-nel MA model system to gain related parameters reflecting the characteristics of channel varia-tion. Usually the signal features non-Gauss distribution, so this method is effective to mini-mized the influence of Gauss noise and achieve parameters estimation.