| 引用本文: | 陶海红,郭晶晶. 基于框架理论的最小阵元数稀疏阵综合算法研究[J]. 雷达科学与技术, 2021, 19(5): 491-498.[点击复制] |
| TAO Haihong, GUO Jingjing. Pattern Synthesis of Sparse Array with Minimum Array Element Number Based on Framework Theory[J]. Radar Science and Technology, 2021, 19(5): 491-498.[点击复制] |
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| 摘要: |
| 随着越来越高的角度分辨率要求与进一步降低的天线成本，大规模阵列越来越普及。在重量、体积和成本有限时，要获得大孔径天线得到较高的角度分辨率，且尽量减少天线阵元数目，可采用最小阵元稀疏阵设计方法。本文基于框架理论，提出了一种新的最小阵元数的稀疏阵综合方法。该方法将稀疏阵设计问题转化为压缩感知问题模型，然后利用次优反馈的零空间追踪硬阈值算法求解。该方法可同时综合阵元位置与阵元权重来匹配给定的阵列方向图，并可有效降低阵元数。仿真实验证明了算法的正确性和有效性 |
| 关键词: 稀疏阵综合 框架理论 次优反馈的零空间追踪硬阈值算法 压缩感知 |
| DOI：DOI:10.3969/j.issn.1672-2337.2021.05.004 |
| 分类号:TN957.2 |
| 基金项目:中央军委科技委创新项目（No.19-HXXX-01-ZD-006-XXX-XX）；国家重点实验室基金（No.61424110302）; 国家自然科学基金(No.61771015) |
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| Pattern Synthesis of Sparse Array with Minimum Array Element Number Based on Framework Theory |
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TAO Haihong, GUO Jingjing
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National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
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| Abstract: |
| With higher angle resolution requirements and reduced antenna costs, large-scale array becomes more and more popular. When the weight, volume and cost are limited, the design method of the minimum array sparse array can be used to obtain the high angle resolution of the large aperture antenna and minimize the number of antenna arrays. Based on the framework theory, this paper puts forward a new method of sparse array synthesis with the minimum number of array elements. The solution transforms the sparse array design problem into a compression sensing problem model, and then solves it by using the sub-optimal feedback of the zero space tracking hard threshold algorithm. The solution can optimize the array element positions and weights to match the given array pattern, and can effectively reduce the number of array elements. The simulation experiment proves the correctness and validity of the proposed algorithm. |
| Key words: sparse array synthesis framework theory sub-optimal feedback of the zero space tracking hard threshold algorithm compression sensing |
