基于FPGA遥测模拟器的设计与实现

摘要

检查和验证地面遥测设备在真实环境中能否正常工作,设计了一种多数据流、多调制体制、高码速率的遥测模拟器.基于FPGA硬件平台、采用软件无线电的思想,在相同的硬件平台下,可重组实现不同的点频、调制体制、码速率以及帧结构.阐述了遥测模拟器的组成、重要部分的工作原理.对接测试和实际任务表明,模拟器能很好地检查验证地面遥测装备技术状态.%In order to test and verify the ground telemetry equipment can work normally in a real task en-vironment,A telemetry simulator of multi-data stream,multi-modulation system and high bit rate has been designed.It is based on the FPGA hardware platform and adopts a idea of Software Defined Radio. On the same hardware platform,It can be reorganized to achieve different measurement and control sys-tems with different frequency,modulation-system,bit-rate and frame-structure.This paper expounds the system composition of telemetry signal generator and the working principle.Docking test and application indicates that the telemetry simulator can check and verify the technical condition of the ground telemetry equipment.