| 二维相控阵-MIMO雷达联合发射子阵划分和波束形成设计方法 |
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| 引用本文： | 黄俊生,苏洪涛.二维相控阵-MIMO雷达联合发射子阵划分和波束形成设计方法[J].电子与信息学报,2020,42(7):1557-1565. |
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| 作者姓名： | 黄俊生 苏洪涛 |
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| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室 西安 710071 |
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| 基金项目： | 国家自然科学基金(61372134) |
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| 摘 要： | 为了有效地抑制干扰信号并进一步提高雷达系统的性能，该文提出一种基于2维相控阵-MIMO雷达的联合发射子阵划分和波束形成设计方法。该方法首先将MIMO雷达系统的发射阵列等分成一定数目的非重叠子阵并给每个天线分配相同的发射能量，以确保发射信号具有恒模特性；其次，在一定的约束条件下，以最大化接收波束形成器的输出信干噪比为准则建立关于子阵结构、每个子阵对应的发射波束形成权矢量以及接收波束形成权矢量的优化模型，并采用循环迭代方法进行求解。仿真结果证实了所提方法的正确性和有效性。
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| 关 键 词： | 相控阵-MIMO雷达 干扰抑制 发射子阵划分 波束形成 |
| 收稿时间： | 2019-06-11 |
Joint Transmitting Subarray Partition and Beamforming Design Method Based on Two-Dimensional Phased-MIMO Radar |
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| Junsheng HUANG,Hongtao SU.Joint Transmitting Subarray Partition and Beamforming Design Method Based on Two-Dimensional Phased-MIMO Radar[J].Journal of Electronics & Information Technology,2020,42(7):1557-1565. |
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| Authors: | Junsheng HUANG Hongtao SU |
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| Affiliation: | National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China |
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| Abstract: | In order to suppress effectively the interference signal and improve further the performance of radar system, a joint transmitting subarray partition and beamforming design method based on two-dimensional phased-MIMO radar is proposed. Firstly, the transmitting array of MIMO radar system is equally partitioned into a number of non-overlapping subarrays and the transmit power of each antenna is equal, so as to guarantee that the transmit signal has constant modulus characteristic. Then, the optimization model for subarray structure of transmitting array, transmit beamformer weight vectors and receive beamformer weight vector is established by maximizing the output signal-to-interference-plus-noise ratio of the receive beamformer under certain constraint conditions. Simulation results demonstrate the correctness and effectiveness of the proposed method. |
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