摘要
介绍等效地球半径、地球曲率和大气折射指数的概念,讨论地球球面和大气折射对机载气象雷达最大探测距离和测高的影响,并做出定量分析。在此基础上,用Matlab软件提供的可视化工具Simulink建立系统仿真模型,给出仿真结果。用于修正和完善机载气象雷达的目标探测仿真模型,使其能够更准确、合理地反映实战条件下各种背景因素对气象雷达探测性能的影响。
The concepts of equivalent radius of the earth, earth curvature and the index of the aerosphere refraction are intro- duced. The influence of the earth spherical surface and aerosphere refraction on the maximum detectable range and height detection of airborne weather radar is discussed and analyzed quantitatively. Based on the theory, a system simulation model is built with the visualization tool Simulink in Matlab software. The simulation results of the proposed model are given in the paper. The system simu- lation model is applied to modifying and perfecting target detection model of airborne weather radar. It makes the model can reflect the influence of all sorts of background factor on the detection performance of weather radar more exactly and rationally.
出处
《现代电子技术》
2012年第12期119-122,共4页
Modern Electronics Technique
关键词
机载气象雷达
等效地球半径
地球曲率
大气折射
airborne weather radar
equivalent radius of the earth
earth curvature
aerosphere refraction
