本文主要讨论阵边界受约束情况下的二维平面阵的阵列设计方法。提出一种在具备目标到达方向（DOA）先验知识的情况下，基于克拉美罗下限（CRLB）准则，给出阵元分布的最佳方案，这种阵列设计方法将实现最佳DOA估计性能，即在特定的入射角度范围内实现高可靠分辨（旁瓣低且主瓣窄）。最后，给出仿真验证并进行性能分析。
In this paper, we mainly discuss a design method of 2D planar array with the constraint of the array boundary. In the case of having a priori knowledge of the target's DOA, an optimal scheme of element distribution is proposed based on Cramer Rao lower bound (CRLB) criterion. This array design method will achieve the best performance of DOA estimation, and high reliable resolution is achieved in a specific range of incidence angles(lower sidelobe and narrower main lobe). Finally, simulation and performance analysis are given.
2016,(s1): 202-205,225 收稿日期：2016-08-12
DOI：10.3404/j.issn.1672-7619.2016.S1.038
分类号：TB559
基金项目：国家自然科学基金资助项目（61471327）
作者简介：魏善义(1989-),男,工程师,研究方向为水声信号处理。
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