飞行器高码率网络化无盲区测控需求与技术

The Requirements and Technologies of Spacecraft High Rate TT&C Network without Blind Area

无线测控系统是飞行器与地面站交互信息的唯一通道,在飞行器研制和试验中占有重要地位。高密度飞行试验任务日趋常态化以及无线通信技术的快速发展,对测控系统提出了新的要求。为顺应发展趋势,对飞行器高码率网络化无盲区测控需求和技术进行客观分析,指出测控系统在高频谱效率调制方式、频谱资源、高增益信道编码、无盲区测控、网络化测控方面需关注的具体问题,明确了SOQPSK和Multi-h CPM调制、LDPC码、Alamouti空时码、C频段测控、网络化、人工智能将是未来飞行器测控发展和攻克的核心技术。

Wireless TT&C system is the only channel of information interaction between spacecraft and ground station and it occupies an important position in the spacecraft development and test.As high density flight test tasks are becoming increasingly normalized and the wireless communication technology is developing rapidly,they put forward new requirements to the TT&C system.This paper conforms to the developing trend of telemetry system.The demands and technologies for high rate TT&C network without blind area are analyzed objectively,and the specific issues in the modulation method with high spectrum efficiency,frequency spectrum resources,high gain channel coding,TT&C network without blind area,are pointed out,which need to be paid more attention to.The SOQPSK and Multi-h CPM modulation,LDPC code,Alamouti space-time code,C band TT&C,network and artificial intelligence will be the core technologies of spacecraft TT&C in the future.