基于四阶累积量的子空间测向方法研究

On DOA Estimation Method Basedon Fourthorder Cumulant

研究了四阶累积量在子空间测向中的几种应用，包括四阶累积量用于色高斯噪声抑制、阵列扩展及提高算法对模型误差的稳健性等几个方面，提出了四阶ＭＵＳＩＣ和四阶ＥＳＰＲＩＴ测向方法，并用计算机模拟验证了文中的有关结论。

In this paper,the DOA(direction of arrival) estimation methods based on fourthorder cumulant are investigated,and the algorithmsMUSIC and ESPRIT based on fourthorder cumulant are presented.The fourthorder MUSIC has the ability of array extension,and the fourthorder ESPRIT is robust to the channel uncertainty model errors.The results are verified by the simulation experiments.