基于均匀圆阵模式空间噪声流形的高分辨测向算法  

A High Resolution Direction Finding Algorithm Based on Mode Space Noise Manifold for Uniform Circular Arrays

作　　者：马常霖[1] 彭应宁[1] 田立生[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电子学报》1998年第7期112-116,共5页Acta Electronica Sinica

摘　　要：本文提出了一种适合于均匀圆阵的高分辨阵列测向算法，该算法首先将圆阵由阵元空间转化至模式空间，然后通过引入噪声流形阵对最大似然测向算法进行改进，形成了非多维搜索优化的圆阵噪声流形算法．计算机模拟结果显示，该算法不仅计算量小。In this paper a high resolution direction finding algorithm which is suitable for deform circular array (UCA)is presented. The algorithm is constructed by transforming the UCA from element space to modespace and reformulating the criteria function of maximum likelihood method(MLM)to a simple form by introducigthe concept of noise manifold matrix. Commpd with MLM the new method of this paper is only an analysis algohthln acher than a multiple-valtiple optimizing one which often becomes useless due to heavy computational burden and local minimum traps.

关 键 词：均匀圆阵 模式空间 噪声流形 阵列信号处理 

分 类 号：TN911.7[电子电信—通信与信息系统]