基于COFDM无线网桥的航空器遥测系统实现

摘要

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.%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。