MIMO雷达非均匀子阵划分方法研究
发布时间：2018-09-07 11:05
【摘要】：提出一种非均匀子阵划分的MIMO雷达阵列设计方法,其不但具有和均匀子阵划分的MIMO雷达(也称为相控阵-MIMO雷达)相同的优势——能同时获得相干处理增益和波形分集增益;并且,不同孔径的子阵使子波束的形成更加灵活;更大的子阵孔径给发射端提供了额外的自由度.理论分析表明,与相控阵-MIMO雷达相比,采用常规波束形成,当干噪比比较低时,所提的非均匀子阵划分的MIMO雷达的输出信干噪比(SINR)更高.仿真实验也证明了上述理论分析的正确性,并表明所提的非均匀子阵的划分方法可以获得更低的副瓣电平.在最小方差无畸变响应波束形成下,零陷更深,输出SINR更高并且抗干扰能力更强.
[Abstract]:A design method of MIMO radar array based on nonuniform subarray partitioning is proposed. It not only has the same advantages as MIMO radar with uniform subarray partitioning, but also can obtain coherent processing gain and waveform diversity gain at the same time. Moreover, the subarray with different aperture makes the subbeam formation more flexible, and the larger aperture of the subarray provides the transmitter with additional degrees of freedom. Theoretical analysis shows that compared with phased array / MIMO radar, the output signal interference noise of the proposed non-uniform subarray division MIMO radar is higher than that of (SINR) when the conventional beamforming and the ratio of interference to noise are low. Simulation results also prove the correctness of the theoretical analysis and show that the proposed nonuniform subarray partition method can obtain lower sidelobe level. Under the minimum variance distortionless response beamforming, the zero trapping is deeper, the output SINR is higher and the anti-jamming ability is stronger.
【作者单位】： 解放军信息工程大学导航与空天目标工程学院;
【基金】：国家863计划项目(2012AA01A502,2012AA01A505)
【分类号】：TN958
[Abstract]:A design method of MIMO radar array based on nonuniform subarray partitioning is proposed. It not only has the same advantages as MIMO radar with uniform subarray partitioning, but also can obtain coherent processing gain and waveform diversity gain at the same time. Moreover, the subarray with different aperture makes the subbeam formation more flexible, and the larger aperture of the subarray provides the transmitter with additional degrees of freedom. Theoretical analysis shows that compared with phased array / MIMO radar, the output signal interference noise of the proposed non-uniform subarray division MIMO radar is higher than that of (SINR) when the conventional beamforming and the ratio of interference to noise are low. Simulation results also prove the correctness of the theoretical analysis and show that the proposed nonuniform subarray partition method can obtain lower sidelobe level. Under the minimum variance distortionless response beamforming, the zero trapping is deeper, the output SINR is higher and the anti-jamming ability is stronger.
【作者单位】： 解放军信息工程大学导航与空天目标工程学院;
【基金】：国家863计划项目(2012AA01A502,2012AA01A505)
【分类号】：TN958
【参考文献】
相关期刊论文 前6条
1 黄中瑞;单凉;陈明建;张剑云;;一种新的MIMO雷达发射波形设计方法[J];电子与信息学报;2016年05期
2 李小波;张正言;王s，
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