基于MUSIC和ESPRIT的双基地MIMO雷达角度估计算法

刘晓莉; 廖桂生

doi:10.3724/SP.J.1146.2009.01459

基于MUSIC和ESPRIT的双基地MIMO雷达角度估计算法

doi: 10.3724/SP.J.1146.2009.01459

基金项目:

国家杰出青年科学基金和国家自然科学基金重点项目资助课题

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出版历程
- 收稿日期: 2009-11-13
- 修回日期: 2010-03-16
- 刊出日期: 2010-09-19

Combined MUSIC with ESPRIT Algorithm for Angle Estimation in Bistatic MIMO Radar System

摘要

摘要: 该文基于2阶和4阶统计量，提出了空间高斯白噪声和高斯色噪声的背景下联合MUSIC和ESPRIT的双基地MIMO雷达角度估计算法。在接收端，通过单天线的MUSIC算法和双天线的ESPRIT算法分别估计目标的离开方向(Direction Of Departure, DOD)和波达方向(Direction Of Arrival, DOA)，且DOD和DOA自动配对。该方法充分利用了MIMO雷达阵列孔径扩展的特征和ESPRIT的子空间旋转不变性，将2维参数估计问题转化为两个1维形式，降低了运算量和系统复杂度。计算机仿真验证了该方法的有效性。
- 双基地MIMO雷达 /
- 角度估计 /
- MUSIC /
- ESPRIT
Abstract: An algorithm combined MUSIC with ESPRIT for angle estimation based on two- or four-order statistics in bistatic MIMO radar system is presented in this paper. The proposed method based on two-order expectation is under the spatial Gaussian white noise environment and four-order cumulant the colored noise. By exploiting MUSIC with one-sensor owing to its extended array aperture and ESPRIT with two-sensor via the rotational invariance property of signal-subspace at the receive end, the Direction Of Departures (DODs) and Direction Of Arrivals (DOAs) of the targets can be estimated separately and paired automatically. The computational burden can be reduced since two-dimensional parameter estimation has been separated into two one-dimensional forms. Numerical results are presented to demonstrate the effectiveness of the method advanced.
- Bistatic MIMO radar /
- Angle estimation /
- MUSIC /
- ESPRIT

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参考文献(1)

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