摘要
雷达成像需要获得目标空间谱域一定范围和密度的采样以重建目标图像,目标空间谱域的填充方式与雷达成像的质量有直接关系.论文首先阐述了MIMO(Multiple-Input Multiple-Output)雷达收发信号模型的空间卷积效应,基于电磁逆散射原理,推导出一种MIMO雷达成像方法,详细论述了成像性能与空间谱域填充的关系.讨论了收/发阵列配置对空间谱域填充的影响,得到阵列排布的基本准则,最后对成像算法的有效性和理论分析结果进行仿真验证.
Radar imaging must obtain an extent of target spatial spectral-domain sampling,and the filling of spatial spectral domain is in direct connection with the quality of imaging result. Firstly, this paper proves the effect of spatial convolution that exists in MlMO（Multiple- Input Multiple-Output ） radar signal model. Based on the electromagnetic inverse scattering theory, an imaging method is derived and the relation between imaging performance and spatial spectral-domain filling is presented. The influence of Iransmitting and receiving army on the spatial spectral-domain filling is discussed. Some principles of army distribution are achieved. Finally, simulations are performed in order to validate the effectiveness of the imaging method. The simulation results show the effectiveness of the imaging method and the theoretical results.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2009年第6期1242-1246,共5页
Acta Electronica Sinica
基金
国防基础科研项目(No.A2820061305)
