无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2015年
6期
16-19
,共4页
网络采集编码%COFDM调制%无线网桥%遥测系统
網絡採集編碼%COFDM調製%無線網橋%遙測繫統
망락채집편마%COFDM조제%무선망교%요측계통
network collection coding%COFDM modulation%wireless bridge%telemetry system
针对目前国内航空器飞行试验现行的 PCM /FM 遥测系统传输体制特点,提出了基于编码正交频分复用( Coded Orthogonal Frequency Division Multiplexing, COFDM)传输体制的无线网桥航空器遥测系统技术方案。介绍了系统方案的总体构成及功能,对系统软、硬件进行了设计,并阐述了系统设计中需要解决的问题。通过系统仿真(测试)进行了可行验证试验,试验结果表明,系统具备同时传输多路视频和监控多目标航空器飞行的能力。
針對目前國內航空器飛行試驗現行的 PCM /FM 遙測繫統傳輸體製特點,提齣瞭基于編碼正交頻分複用( Coded Orthogonal Frequency Division Multiplexing, COFDM)傳輸體製的無線網橋航空器遙測繫統技術方案。介紹瞭繫統方案的總體構成及功能,對繫統軟、硬件進行瞭設計,併闡述瞭繫統設計中需要解決的問題。通過繫統倣真(測試)進行瞭可行驗證試驗,試驗結果錶明,繫統具備同時傳輸多路視頻和鑑控多目標航空器飛行的能力。
침대목전국내항공기비행시험현행적 PCM /FM 요측계통전수체제특점,제출료기우편마정교빈분복용( Coded Orthogonal Frequency Division Multiplexing, COFDM)전수체제적무선망교항공기요측계통기술방안。개소료계통방안적총체구성급공능,대계통연、경건진행료설계,병천술료계통설계중수요해결적문제。통과계통방진(측시)진행료가행험증시험,시험결과표명,계통구비동시전수다로시빈화감공다목표항공기비행적능력。
Based on the characteristics of PCM /FM telemetry system of the current aircraft flight test in China,a design scheme of telemetry system is proposed which uses the technique of wireless bridge based on COFDM transmission system.The overall structure and function of the scheme are introduced,the software and hardware are designed,the problems to be solved in the system design are described,and the system viability verification test is conducted through simulation ( test ) . The test results show that the system is capable of simultaneous transmission of multi?channel video and multi?target aircraft flight surveillance.