构造雷达关联成像随机辐射场的方法分析

Methodology Analysis on Stochastic Radiation Field of Radar Correlated Imaging

关联成像与传统的成像不同,是光学成像领域中一种新的成像体制,实现了探测与成像的分离。关联成像在雷达成像中拥有广阔的应用前景,为雷达成像的发展提供了新的思路。阐述了实现雷达关联成像中随机辐射场的几种方法,并重点分析其中一种模型。通过改变模型参数,分析了辐射场的变化趋势,研究了信号带宽和目标散射点间距对图像分辨率的影响,研究结果对雷达关联成像系统参数的设置具有一定的参考作用。

Different from the conventional imaging methods,the correlated imaging is an emerging technology which realizes the separation of the detection from the imaging.The correlated imaging broads the application prospect in the field of radar imaging,and brings new ideas for the development of radar imaging.We introduce the implementation approaches of the stochastic radiation field,and lay special stress on analyzing one of them.The variation trend of radiation field by changing the model parameters is analyzed,and the influence of signal bandwidth and scatter point spacing on image resolution is elaborated.The research results can play reference for the parameter setup of radar correlated imaging system.