太赫兹波应用于临近空间高速飞行器测控研究

Research on application of Terahertz technology to near-space hypersonic spacecraft Tracking Telemetry and Command

摘要:

临近空间高速飞行器测控需要解决“黑障”、超视距时空连续覆盖和多目标等难题，根据太赫兹电磁波可以穿透等离子体而大气传输损耗大的特点，研究以飞机和飞艇为主要平台的空基太赫兹测控系统，提出采用扩频体制实现对高速飞行器进行测距、测速、遥测和遥控的综合测控以及多目标测控，采用nR (n≥3)测量体制实现高速飞行器的外弹道测量，分析表明空基太赫兹扩频测控系统技术可行，但离工程应用还有较大差距。

Abstract:

Tracking Telemetry and Command(TT&C) for near space hypersonic spacecraft needs to solve blackout，over-the-horizon and multi-target problems. According to the characteristics that Terahertz waves can penetrate the plasma and are attenuated intensively in the atmosphere，the Terahertz TT&C system based on airborne platform including aeroplane and airship is researched. The Terahertz system can accomplish integrated function of velocity measurement，ranging，telemetry and telecommand by using spread spectrum technology；and tracking telemetry and command for multi-target can be realized as well. The ballistic measurement of hypersonic spacecraft can be implemented by using nR (n≥3) method. The analysis results indicate that the technology solutions for air-borne Terahertz spread spectrum TT&C system are reasonable，while there are significant differences for engineering application.