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电子学报  2012 

阵列模型误差影响下ESPRIT算法的二阶性能分析

DOI: 10.3969/j.issn.0372-2112.2012.10.039, PP. 2133-2139

Keywords: ESPRIT算法,模型误差,二阶性能分析,阵列流形失配,噪声模型失配

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Abstract:

针对阵列模型误差扰动的影响,该文对ESPRIT算法的方位估计性能进行二阶性能分析(即忽略模型误差扰动量的三次及以上各项).与经典分析方法(即一阶分析方法)相比,文中的性能分析方法能够在模型误差扰动较大的情况下提高性能预测精度.此外,文中的理论推导不仅针对阵列流形失配的情况,还针对阵元噪声模型失配的情形.数值实验表明:在较大模型误差的条件下,文中的二阶性能分析方法能够提高对ESPRIT算法的性能预测精度.

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