鱼雷技术Issue(3)：179-183,5.
一种基于K-分布模型及多次途径的浅海混响仿真方法
A Simulation Method of Shallow Water Reverberation Based on K-distribution Model and Multipath
摘要
Abstract
The Rayleigh distribution reverberation method based on the central-limit theorem cannot adapt to the high resolution active sonar system, while K-distribution model is more suitable for the statistical characters of the reverbe-ration in the condition of limited number of scatterers. Therefore, a new method is proposed in this paper to deduce the non-Rayleigh distribution reverberation by setting the random variables of K-distribution and simulating the reverbera-tion from matched filter. FIR filters are used to simulate multipath propagation, further to investigate the statistical cha-racters of the reverberations of multipath propagation and direct wave. Simulation results indicate that the K-distribution based multipath propagation reverberation occupies obvious statistical characters of non-Rayleigh distribution in norma-lized reverberation intensity, probability of false alarm, and autocorrelation function.关键词
浅海混响/K-分布模型/多径/非瑞利分布Key words
shallow water reverberation/K-distribution model/multipath/non-Rayleigh distribution分类
武器工业引用本文复制引用
..一种基于K-分布模型及多次途径的浅海混响仿真方法[J].鱼雷技术,2013,(3):179-183,5.基金项目
国家自然基金(61271414) （61271414）
