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复杂环境是制约雷达特别是机载雷达性能发挥的重要因素 ,也是通信系统设计需要考虑的关键问题 .本文具体分析了我国对流层大气结构随时间和地域的分布特点 ,应用非线性动力学分形理论描述地海表面的空时变化特征 ,采用分步Fourier变换法数值求解抛物型波方程研究了不同大气剖面和地海粗糙面动态结构对雷达和通信系统的传播影响 .
Complicated environment is an important factor that restricts the performance of radar, especially airborne radar, and also a key issue that needs to be considered in the design of communication system.This paper analyzes the distribution of atmospheric structure of the troposphere over time and region in detail, and applies the nonlinear dynamics fractal theory to describe The spatial and temporal variations of the surface of the sea and the sea are studied. The influence of different atmospheric sections and the dynamic structure of the rough surface of the sea on the propagation of radar and communication system are studied by the numerical solution of the parabolic wave equation by the step Fourier transform method.