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电子学报  2012 

一种基于最小化广义Rayleigh商的无源定位算法研究

, PP. 2446-2450

Keywords: 无源定位,广义Rayleigh商,约束总体最小二乘,广义特征值分解,克拉美罗限

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Abstract:

为改善只测角无源定位的性能,提出了一种基于最小化广义Rayleigh商的无源定位算法.该算法利用扰动观测矩阵和扰动观测向量的乘性结构,将约束总体最小二乘问题转化为最小化广义Rayleigh商问题,从而只需对一对矩阵束进行广义特征值分解即可求得全局最优定位解.仿真结果表明所提算法性能稳健且计算量较小,定位收敛精度逼近克拉美罗限(CRLB),远优于最小二乘(LS)算法和总体最小二乘(TLS)算法,实用性强.

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