一种改进的Weibull分布杂波仿真方法

针对目前Weibull分布杂波仿真中没有考虑线性滤波器物理可实现性问题,首先深入研究了该杂波模型的统计特性及其ZMNL仿真方法;在此基础上,引入最小相位特性与复倒谱技术,提出了一种物理可实现的滤波器产生方法,同时详细阐述了物理可实现Weibull分布杂波随机序列产生的流程;最后,进行了仿真实验,仿真结果证明了该方法的准确性和有效性。该方法产生的杂波可用于雷达信号模拟、雷达图像分析及雷达最优信号处理器设计。

An Ameliorated Method of Simulation for the Weibull-distributed Clutter

To solve the question that the realizable linear filter in physics is not considered in the simulation of the Weibull-distributed clutter,firstly,this paper studies the statistic characteristic of the clutter model and the simulation method of ZMNL(zero memory nonlinearity).Then adopting minimum phase feature and complex cepstrum technology,this paper proposes the technique for the realizable filter in physics.Then the method of generation of random Weibull-distributed sequences is set forth profoundly.Finally,the simulation is carried out and the results prove the validity and veracity of the method proposed in this paper.The clutter generated by this method can be used in the simulation of radar signal,analysis of radar image and optimization of radar signal processor.