DOA estimation using one-bit quantized measurements

被引：146
作者：
Bar-Shalom, O [1 ]
Weiss, AJ [1 ]
机构：
[1] Tel Aviv Univ, Dept Elect Engn, IL-69978 Tel Aviv, Israel
来源：
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2002年 / 38卷 / 03期
关键词：
D O I：
10.1109/TAES.2002.1039405
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The effects 1-bit quantization of the input samples has on the direction-of-arrival (DOA) estimation accuracy are considered. The signal model assumes a single stochastic Gaussian point source that is embedded in white Gaussian noise (WGN). The inherent limitations governed by the extreme clipping of the input data are analyzed using the Cramer-Rao bound (CRB) that is derived for a two-sensor array. In addition, several estimators for the 1-bit estimation are discussed. Numerical and analytical analyses of the estimation error reveal weak dependency on signal-to-noise ratio (SNR) with singular behavior of the estimation error in certain DOA angles.
引用
收藏
页码：868 / 884
页数：17
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