摘要
本文提出了一种基于卫星测控链路的卫星数据传输动态调整技术,即利用卫星的测控信道测量卫星X频段链路情况,实时调整卫星数据传输速率、调制方式和信道编码等,并通过卫星下行遥测信号,将调整情况实时传送至数据接收站,数据接收站根据实际情况做出相应响应,从而实现动态调整数据传输链路的功能,提升数据传输效率.此方法可以在不改变现有在轨卫星工作模式或者进行简单升级的情况下,大大提升数据传输效率,是一种简单高效的处理方式.
This paper proposes a dynamic adjustment technology of satellite data transmission based on satellite telemetry track and command(TT&C)link.This technology can adjust the data transmission rate,modulation mode and channel coding of the satellite by measuring the X-band link of the satellite through the measurement and control channel of the satellite.The data receiving station can accept the real-time adjustment of satellite downlink telemetry signal and make corresponding response according to the actual situation.Thus the function of dynamic adjustment of data transmission link is realized and the efficiency of data transmission is improved.This method can greatly improve the efficiency of data transmission without changing the working mode of the existing orbiting satellites or performing simple upgrades.
作者
孙伟
邢斯瑞
易进
徐婧
张士伟
SUN Wei;XING Sirui;YI Jin;XU Jing;ZHANG Shiwei(Changguang Satellite Technology Co. , Ltd. , Changchun 130000, China)
出处
《测试技术学报》
2021年第3期272-276,共5页
Journal of Test and Measurement Technology
关键词
卫星
数据传输
测控
遥感
动态链路
satellite
data transmission
TT&C
remote-sensing
dynamic link
