Decoupled Estimation of the Central Azimuth and Elevation for an Incoherently Distributed Source
The authors consider the problem of estimating the two-dimensional (2D) direction-of-arrival (DOA) parameters of an incoherently distributed (ID) source, using a L-shape array. Under small angular extension, the spatial cross-correlation function (SCF) of the array received data can be separated into two parts: the amplitude part and phase part The central angular information is in the phase part of the SCF, and the angular extension information is in the amplitude part of the SCF, thus enabling to decouple the estimation of the central angle from that of the angular extension. Without spectrum-peak searching and the eigendecomposition of the sample covariance matrix, the proposed method is computationally more attractive than other known methods. In addition, it is also a robust estimator which doesnt depend on the angular distribution of the source. Numerical examples illustrate the performance of the method.
incoherently distributed source L-shape array spatial cross-correlation function (SCF)
Zhi Zheng Guangjun Li Yunlong Teng
School of Communication and Information Engineering University of Electronic Science and Technology Research Institute of Electronic Science and Technology University of Electronic Science and Technol
国际会议
2011 International Conference on Information and Industrial Electronics(2011年信息与工业电子国际会议 ICIIE 2011)
成都
英文
361-364
2011-01-14（万方平台首次上网日期，不代表论文的发表时间）