一种新型雷达高度表回波信号模拟器的设计与实现  

Design and Realization of a New Type Radar Altimeter Echo Simulator

作　　者：张华[1] 胡修林[1] 马若飞[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《计算机测量与控制》2011年第2期341-343,362,共4页Computer Measurement &Control

摘　　要：为了客观评估和测试雷达高度表的动态性能,提出了一种新的脉冲雷达高度表回波信号模拟器的设计思想和实现方法;该模拟器的创新点在于集成了雷达高度表回波信号的两种模拟方法:基于实际飞行试验采集回波的回放和基于数学模型的仿真回波;推导了回波仿真的数学模型,并基于现代仿真与软件无线电技术完成了模拟器的系统结构与各子模块的设计和实现;理论分析及测试结果表明该模拟器能在实验室条件下有效模拟飞行航迹中不同地形地貌条件下的真实地面散射回波。The design and implementation method of a new radar altimeter echo simulator is proposed in this paper. The simulator uses two methods to realize the simulation of the radar altimeter echo, one is based on the actual flying test acquisition echo, and the other one is based on mathematic model. The mathematic model is derived first, the design of system architecture and each sub--module is introduced in detail, which is based on software radio technology. Theoretical analysis and practical testing proved that the simulator can simulate the real radar ground echo in different terrain conditions.

关 键 词：雷达高度表 回波 模拟器 数学模型 软件无线电 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]