Elevation angle and multipath fading coefficient joint estimation algorithm in VHF radar

被引：0
|
作者：
Liu J. [1 ]
Liu Z. [1 ]
Liu Y.-F. [1 ]
机构：
[1] National Lab of Radar Signal Processing, Xidian University
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2011年 / 33卷 / 01期
关键词：
Altitude measurement; Direction-Of-Arrival (DOA); Fading coefficient; Multipath; VHF radar;
D O I：
10.3724/SP.J.1146.2010.00251
中图分类号：
学科分类号：
摘要：
Based on general MUSIC algorithm, an elevation angle and multipath fading coefficient of the target joint estimation algorithm is proposed in VHF multipath environment. In this algorithm, a virtual multipath fading coefficient is derived from the array covariance matrix and search angles, then a subspace is formed by this coefficient and search angles. When this subspace is orthogonal to the noise subspace, DOA angles are achieved. Simultaneously, the corresponding coefficient is multipath fading coefficient. While overcoming multipath effects to elevation angle measurement, this method retains antenna aperture, and does not require a special antenna array configuration. Theoretical analysis and computer simulation results demonstrate the merits of the new algorithm.
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页码：33 / 37
页数：4
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