CRAMER-RAO BOUND OF THE DIRECTION-OF-ARRIVAL ESTIMATION USING A SPATIALLY SPREAD ELECTROMAGNETIC VECTOR-SENSOR

被引：0
|
作者：
Yuan, Xin [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Kowloon, Hong Kong, Peoples R China
来源：
2011 IEEE STATISTICAL SIGNAL PROCESSING WORKSHOP (SSP) | 2011年
关键词：
Antenna array mutual coupling; aperture antennas; array signal processing; direction of arrival estimation; nonuniformly spaced arrays; polarization; POLARIZATION ESTIMATION; ARRAY; MUSIC; ALGORITHM; ESPRIT;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
spatially-spread electromagnetic vector-sensor consisting of six non-collocating dipoles / loops is proposed in [1] to (i) reduce the mutual coupling across antennas, (ii) adopt the Poynting-vector estimator to estimate the direction-of-arrival of the source, and (iii) improve the direction-finding accuracy by extending the spatial aperture. The improvement in estimation accuracy was characterized by the Cramer-Rao bound for one pure-tone signal in [1]. In contrast, this paper will derive a new Cramer-Rao bound by modeling the incident source as a zero-mean complex Gaussian random sequence. This signal model is applicable when there is no prior knowledge of the incident source's time-frequency structure.
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页码：1 / 4
页数：4
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