Cramér-rao bound for near-field source localization

被引：0
作者：
Bao T. [1 ]
Zhou D. [1 ]
Li L. [1 ]
Hu C. [2 ]
机构：
[1] School of Electronics and Information, Northwestern Polytechnical University, Xi'an
[2] National Key Laboratory of Science and Technology on UAV, Northwestern Polytechnical University, Xi'an
来源：
Bao, Tao (baotao@nwpu.edu.cn) | 1600年 / Science Press卷 / 38期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Cramér-Rao bound; Direction and range estimation; Near field; Non-uniform linear array; Signal processing; Source localization; Thinned factor;
D O I：
10.11999/JEIT150578
中图分类号：
学科分类号：
摘要：
In view of the existing CRB (Cramér-Rao Bound) for near-field single source is based on the uniform linear array, and analyzes less fully the CRB's characteristics and the influence factors of specific. In this paper, non-matrix, closed-form expression of the deterministic CRB for the near-field narrow band model is deduced based on Fisher information matrix, Schur complement and Jacobi transform with non-uniform linear array. The behavior of the performance with respect to some features of interest are discussed, namely, the array geometry, the array aperture, the thinned factor, the target signal frequency and the signal to noise ratio. Through the reasonable array design scheme, the direction and range of the target are both estimated. The Monte-Carlo simulation results validate the effectiveness of the theoretical analysis and the conclusion. © 2016, Science Press. All right reserved.
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页码：758 / 762
页数：4
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