微波辐射信号是"似噪"的随机信号,综合孔径辐射计反演图像具有随机特性。建立了综合孔径辐射计反演图像的统计分布模型,提出了基于综合孔径辐射计反演图像的目标检测概率计算方法,给出了综合孔径辐射计的最大探测距离方程。并以100单元T型天线阵列为例,分析了综合孔径辐射计用于空中隐身目标探测的性能,通过仿真进行了实验验证。论文研究结果将为综合孔径辐射计技术在隐身目标探测中的应用提供理论依据。
Because of the random characteristics of microwave signals,the inversed images of synthetic aperture radiometer have random characteristics.The statistical distribution model based on inversed images is built.The method for calculating the detection probabilities of inversed images is presented.The formula for calculating the maximum distance of detecting target by synthetic aperture radiometer is deduced.At last,the performance of detecting stealthy targets by synthetic aperture radiometer is analyzed using 100 unit T-shape antenna configuration as an example and the method is verified by computer simulation.The research in this paper is much of help in the application of stealthy targets detection using synthetic aperture radiometer.