摘要
首先分析了冲击噪声的性质以及它对传统的基于二阶或高阶统计量的子空间测向技术的影响 ,然后提出了一种新的在冲击噪声环境中基于子空间的阵列测向算法。该算法利用TLS ESPRIT算法的基本思想 ,通过对阵列输出信号的协变异系数矩阵进行奇异值分解来估计来波方位 ,最后进行了计算机仿真试验 ,验证了该算法的可行性和有效性。
This paper first analyses the properties of impulsive noise and its affecting on the traditional subspace techniques employing second order or higher order statistics. Then we present a new subspace based direction finding algorithm in the presence of impulsive noise. According to the basic idea behind TLS ESPRIT , the method estimates the bearing information of the incoming signals by perfor ming singular value decomposition (SVD) on the covariation coefficient matrices of array outputs. Finally, the simulation results show the feasibility and effec tiveness of the algorithm.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2003年第2期174-177,共4页
Acta Aeronautica et Astronautica Sinica
