多频带的循环最小二乘波达方向估计  

Multiple Frequency Band Cyclic Least Squares Estimation of Direction of Arrival

作　　者：于宏毅[1] 保铮[1] 张建康[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室,西安710071

出　　处：《电子学报》1998年第6期1-4,共4页Acta Electronica Sinica

基　　金：国家自然科学基金

摘　　要：本文提出了一种针对循环平稳信号的多频带频域循环最小二乘波达方向估计算法,该算法有效地利用了循环平稳信号所提供的各个频带上谱相关的信息,提高了估计性能。文中依据所需循环平稳信号的谱相关性在整个系统带宽内变化较大这一特点,提出了一种简单而又有效的频带选择算法,在性能基本相同的情况下节省了计算量。A multiple band cyclic least squares algorithm of estimation of direction of arrival in frequency domain for cyclostationary signals is presented which exploits efficiently spectral correlation of the entire frequency band of a system. Thus a more accurate estimate is achieved. Because of the great difference in spectral correlation across the system band, an algorithm keeping almost the same performance but reducing calculation costs is developed utilizing a simple and efficient selection of bands.

关 键 词：循环平稳性 波达方向估计 阵列信号处理 

分 类 号：TN911.7[电子电信—通信与信息系统]