| 引用本文: | 庄宇乾，宋耀良，穆童. 频率分集阵列“点”型发射方向图综合方法[J]. 雷达科学与技术, 2018, 16(3): 298-302.[点击复制] |
| ZHUANG Yuqian, SONG Yaoliang, MU Tong. Dot-Shape Transmit Beam Pattern Synthesis for Frequency Diversity Array[J]. Radar Science and Technology, 2018, 16(3): 298-302.[点击复制] |
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| 摘要: |
| 波束综合技术可将雷达发射功率在感兴趣的空域汇聚，相关研究已从角度维上的聚焦发展到距离-角度二维空间上的聚焦，这种技术在高分辨率成像、远距离能量传输和医学靶向治疗等方面有广阔应用前景。针对现有基于频率分集阵列的“点”型发射方向图综合方法在分辨率和阵元间发射功率均衡性方面存在的不足，在理论分析“点”型发射方向图综合求解算法的同时，提出了基于凸优化的约束加权矩阵综合新算法。仿真结果表明，该算法在有效性、分辨率和旁瓣抑制性能方面比现有算法有较大提高。 |
| 关键词: 发射方向图综合 频率分集阵列 凸优化 “点”型发射方向图 |
| DOI：10.3969/j.issn.1672-2337.2018.03.011 |
| 分类号:TN958.5 |
| 基金项目:国家自然科学基金（No.61271331, 61571229） |
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| Dot-Shape Transmit Beam Pattern Synthesis for Frequency Diversity Array |
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ZHUANG Yuqian, SONG Yaoliang, MU Tong
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School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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| Abstract: |
| The beam pattern synthesis technique can converge the radar transmit energy in the interested spatial domain. The related research about focusing has been developed from the angle dimension to the distance-angle two-dimensional space. This technology has wide application prospects in high-resolution imaging, long-range energy transmission, medical targeted therapy and other aspects. According to the defects of the existing dot-shape transmit beam pattern synthesis method based on frequency diversity array (FDA) about its resolution and transmit power balance between the array element, we analyze the theory of the algorithm of the dot-shape transmit beam pattern synthesis method and propose a new synthesis algorithm to constrain the weighting matrix based on convex optimization. The simulation results show that the performance of the proposed algorithm can greatly improve the effectiveness, resolution and sidelobe suppression than the existing algorithms. |
| Key words: transmit beam pattern synthesis frequency diversity array (FDA) convex optimization dot-shape transmit beam pattern |
