一种非均匀线阵超分辨测向性能分析

Analysis of Superresolution Direction Finding Performance for a Non-uniform Linear Array

在使得阵列的分辨力达到最高的基础上,推导并提出了一种非均匀线阵设置方法,然后从理论上分析了其估计性能,最后通过计算机仿真验证了理论分析结果,并将其与最小冗余阵(MRL)在分辨力、估计成功概率、CRB(Cramer-Rao Bound)等方面进行了对比,可以看出与最小冗余阵相比,该阵列在分辨力和估计的CRB下界等估计性能方面都要优于最小冗余阵,从而证明了这种非均匀线阵设置方法的有效性和合理性。

This paper proposes a set method of non-uniform linear array on the basis of obtaining the highest resolution of array. And then it analyzes theoretically the estimation performance of this method. Finally, based on computer simulation, it verifies and compares the analysis results with the minimum redundancy linear array（ MRL） in such aspects as the resolution, estimation success probability and CRB. The results show that this method has better estimation performance in resolution and CRB, and its effectiveness and rationality are proven.