一种组合式甚高频全向信标和仪表着陆系统信号模拟器研制  

Development of a Combined Very High Frequency Omnidirectional Range and Instrument Landing System Signal Simulator

作　　者：牛强军[1,2] 张强[1] 缑朋帅 

机构地区：[1]空军第一航空学院航空电子工程系,河南信阳464000 [2]郑州大学信息工程学院,郑州450001

出　　处：《计算机测量与控制》2016年第10期236-239,共4页Computer Measurement &Control

摘　　要：针对传统的甚高频全向信标信号模拟器和仪表着陆系统信号模拟器智能化程度低、可靠性不高、携带不方便的缺点,设计了一种体积小、功耗低、精度高的组合式甚高频全向信标和仪表着陆系统信号模拟器;采用数字信号处理技术由FPGA完成多种音频调制信号的合成,利用具有幅度调谐功能的DDS合成载波信号,使用组合衰减技术实现输出电平在大范围内连续可调,满足了甚高频全向信标及仪表着陆系统信号格式及输出需求;信号模拟器实现了甚高频全向信标、航向、下滑与指点信标的信号模拟;整机性能经测试符合技术指标要求,现已经小批量推广应用,市场前景很好。Aiming at the shortcomings of the traditional very high frequency omnidirectional range （VOR） and instrument landing sys- tem （ILS） signal simulator with low intelligence, low reliability and inconvenient to carry, the combined very high frequency omnidirectional range and instrument landing system signal simulator is designed with small size, low power consumption and high precision. The synthesis of a variety of audio modulation signal is implemented on FPGA by digital signal processing technology~ the carrier signal is synthesized by DDS with amplitude tuning function; the output level which is continuously tunable in a large dynamic range is achieved by combination of attenuation technology; all of them meet the requirements of signal format and output level. The machine performance tested in accordance with the technical requirements, now the signal simulator has been small batch promoted, the market prospect is very good.

关 键 词：甚高频全向信标 仪表着陆系统 幅度调谐 

分 类 号：TN96[电子电信—信号与信息处理]