航天器工程2018，Vol.27Issue(2)：47-53,7.DOI:10.3969/j.issn.1673-8748.2018.02.008
一种多星测控下行多址干扰分析方法
A Downlink Multiple-access Interference Analysis Method for Multi-satellite TT&C
韦欣荣 1徐军 1王万斌 1张宏杰1
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 折叠
摘要
Abstract
Aim at the problem of TT&C during the launch of one vehicle with multi-satellite,a method of downlink multiple-access interference analysis for the TT&C link of multi-satellite to Earth station is proposed.A simplified model of electromagnetic simulation of satellite-rocket combinations is constructed.The method of combining the electromagnetic simulation and multi-satellite interference intensity analysis is used to evaluate the upper bound of the jam-to-signal ra-tio of the disturbed signal,and to verify the compatibility of the system.As an example,one ve-hicle with double satellites of medium earth orbit with series structure,according to the complex constraints of configuration layout and the use of time in launching phase,this method is used to evaluate and analyze the downlink code division multiple-access interference intensity of the spread spectrum TT&C signal with a single station is simultaneous receiving the downlink signals of double satellites,and the flight test of double satellites in launching phase is carried out.The results show that the method can effectively analyze the intensity of multiple-access in-terference intensity,and meet the practical requirements.The method provides effective support for verifying the compatibility of the system design of the double satellites and ground station and the use strategy of the ground station during the flight control of satellite and rocket.It can pro-vide reference for similar multi-obj ective TT&C engineering application.关键词
多星测控/多址干扰/电磁仿真Key words
multi-satellite TT&C/multiple-access interference/electromagnetic simulation分类
航空航天引用本文复制引用
韦欣荣,徐军,王万斌,张宏杰..一种多星测控下行多址干扰分析方法[J].航天器工程,2018,27(2):47-53,7.
