机载着陆设备信号模拟器的研制

通过分析仪表着陆系统（ILS）航向台、下滑台、指点信标台的信号格式,甚高频全向信标（VOR）台的信号格式,微波着陆系统（MLS）方位制导信号、仰角制导信号及基本数据信号的格式、性能参数等,构建满足基层级、中继级、基地级的着陆设备信号模拟器。模拟器采用数字信号处理（DSP/FPGA）、频率合成、矢量调制等技术,解决了低频信号合成和射频信号输出调整等问题。

Development of Airborne Landing Equipment Signal Simulator

Through analyzing the signal formats of Localizer,Glide Siope and Radiobeaconmarker on the Instrument Landing System（ILS）,VHF Omnidirecional Radio（VHR） signal,Microwave Landing System（MLS） direction Guided and Elevation Guided signal,and the format and performance parameters of the basic data signal,landing equipment signal simulator suitable for basic level,relay level and base level is proposed and implemented.Technologies such as signal processing（DSP/FPGA）,frequency synthesis,vector modulation and so on are adopted in the simulator,and thus the problems such as low frequency signal synthesis and RF signal output adjustment are readily solved.