无人机分米波着陆系统仿真设计.doc

------------------------------------------------------------------------------------------------ ——————————————————————————————————————无人机分米波着陆系统仿真设计统仿真学报? Vol. 19 No. 18 2007 年9月 Journal of System Simulation Sep., 2007 第 19 卷第 18期系胡奕明 1, 吴德伟 2, 秦永元 1 (1. 西北工业大学自动化学院, 陕西西安 710072 ; 2. 空军工程大学电讯工程学院, 陕西西安 710077) 摘要: 仿真设计是研究无人机着陆引导系统的重要环节。分析并给出了分米波仪表着陆系统的导航信号和天线辐射场的数学模型。以此为基础, 充分利用虚拟仪器软件 labView 的图形功能和数学计算功能, 设计了无人机分米波仪表着陆系统的虚拟仿真系统软件。仿真结果表明, 该仿真系统能较好模拟着陆过程中, 飞机航向和下滑角的变化引起的天线辐射方向图的变化。仿真系统具有波形显示功能和方便的系统界面。关键词:无人机; 分米波仪表着陆; LabView ;系统仿真中图分类号: 文献标识码: A 文章编号: 1004-731X (2007) 18-4305-04 Design of Simulation System to UAV Decimeter Wave Instrument ------------------------------------------------------------------------------------------------ —————————————————————————————————————— Landing System HU Yi-ming1 , WU De-wei2 , Qin Yong-yuan1 ( of Automation of Northwestern Polytechnical University, Xi’ an 710072, China; munication Engineering Institute of Air Force Engineering University, Xi’ an 710077, China) Abstract : Simulation is one of the most important parts in study of U AV(unmanned aerial vehicle) landing system. Navigation signals and antenna radiation field of decimeter wave instrument landing system were analyzed, and the mathematical model was established. Based on them, the simulation system of UAV decimeter wave instrument landing system was designed with the support of LabView ’s abundant graphic functions and powerful mathematics functions. Simulation results demonstrate that the simulation system can better simulate the change of antenna pattern according to the change of course angle and glide angle in the process of landing. Key words : UAV; decimeter wave instrument landing system; LabView; system simulation 真软件平台。 Labview 是一种软件开发环境,是一种图形化程序语言(graphical programming language) , 具有丰富的图形功能和数学计算功能, 具有各式各样、功能强大的函数库, 包括数据采集、数据分析和数据显示等,与传统的编程语言比较, Labview 图形编程方式能-------------------------------------------------------------------------------