【摘要】：提出一種非均勻子陣劃分的MIMO雷達(dá)陣列設(shè)計(jì)方法,其不但具有和均勻子陣劃分的MIMO雷達(dá)(也稱為相控陣-MIMO雷達(dá))相同的優(yōu)勢(shì)——能同時(shí)獲得相干處理增益和波形分集增益;并且,不同孔徑的子陣使子波束的形成更加靈活;更大的子陣孔徑給發(fā)射端提供了額外的自由度.理論分析表明,與相控陣-MIMO雷達(dá)相比,采用常規(guī)波束形成,當(dāng)干噪比比較低時(shí),所提的非均勻子陣劃分的MIMO雷達(dá)的輸出信干噪比(SINR)更高.仿真實(shí)驗(yàn)也證明了上述理論分析的正確性,并表明所提的非均勻子陣的劃分方法可以獲得更低的副瓣電平.在最小方差無(wú)畸變響應(yīng)波束形成下,零陷更深,輸出SINR更高并且抗干擾能力更強(qiáng).
[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.
【作者單位】： 解放軍信息工程大學(xué)導(dǎo)航與空天目標(biāo)工程學(xué)院;
【基金】：國(guó)家863計(jì)劃項(xiàng)目(2012AA01A502,2012AA01A505)
【分類號(hào)】：TN958

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 黃中瑞;單涼;陳明建;張劍云;;一種新的MIMO雷達(dá)發(fā)射波形設(shè)計(jì)方法[J];電子與信息學(xué)報(bào);2016年05期

2 李小波;張正言;王s，

本文編號(hào)：2228082