基于空时二维随机辐射场的弹载雷达前视成像

Missile-borne Radar Forward-looking Imaging Based on Space-time 2D Random Radiation Field

针对利用多普勒效应的SAR成像方法不适用于弹载雷达前视成像的问题,本文提出了一种基于空时二维随机辐射场的弹载雷达前视成像方法。该方法首先利用多通道天线产生具有空时随机性的辐射场,然后在对散射回波建模的基础上,利用观测场景的稀疏性,采用基于压缩感知的方法对场景进行前视成像。实验结果表明该方法具有较强的前视成像能力。

A forward-looking imaging approach for missile-borne radar based on space-time 2D random radiation field is proposed in this paper to solve the problem of SAR imaging approach using Doppler effect inapplicable for the missile-borne radar forward-looking. Firstly, a space-time random radiation field is generated by the multichannel antenna. Then, by utilizing sparsity of the observed scene, forward-looking imaging of the scene is performed by method of compressive sensing based on the echo model. Experimental results show that the approach has supe- rior forward-looking imaging capability.