摘要
本文内容分理论研究和实验研究两部分。首先，对高分辨目标方位估计算法IMP提出了两种改善其收敛速度的方法。利用这两种改进方法，可将原算法的收敛速度提高一倍。计算机仿真验证了改进方法的有效性。其次，针对该算法进行了水池实验研究，实验分析结果显示，IMP算法能够有效地分辨和估计非等功率的两个相干信号源。
This paper involves theoretical and experimental studies on the high resolution IMP algorithm. First, two modification methods are proposed for the improvement of convergence speed of IMP,one is to reduce the number of iterations required in the original IMP algorithm and the other to speedup each iteration involved. Applying these two methods to the original IMP algorithm increases theconvergence speed by 50%, verified by computer simulations. Secondly, in--door experiments are conducted in a water tank for studying the performance of IMP in practical situations. By calibrating withmeasured array manifold of the experimental array, the IMP algorithm separates two strongly correlatedsources with differnt strengths reliably and estimates their directions correctly.
出处
《声学学报》
EI
CSCD
北大核心
1999年第2期210-218,共9页
Acta Acustica
关键词
IMP
递增阶数
多参数估计
目标方位估算
高分辨
Convergence of numerical methods
Iterative methods
Parameter estimation
Targets
