摘要
本文研究最大熵图象重建用于转台目标雷达成象问题,给出了成象的共轭梯度算法。本文还利用FFT大大提高了计算优化搜索方向的效率,并用微波暗室数据进行了成象研究,验证了算法的正确性。将最大熵法成象结果与FFT-距离多普勒法成象结果、AR外推-FFT超分辨成象法的结果进行比较表明,最大熵方法的分辨力更高。
The application of Maximum Entropy (ME)image reconstruction in radar imaging of rotating targets is discussed and the conjugate gradient algorithm for imaging is presented in this paper. The efficiency of computing searching directions of optimization is greatly improved by using FFT and imaging studies to rotating targets using data collected in microwave chamber are perform * ed, so the correctness of the algorithm is verified. Compa risons of imaging results with other methods such as FFT-RD method and AR extrapolation-FFT method are given and show that ME method has much higher resolution.
出处
《现代雷达》
CSCD
1991年第6期95-101,共7页
Modern Radar
