上升段码间多址干扰影响分析  

Analysis of Influence of Inter-code Multiple Access Interference in Launch Section

作　　者：龙斌[1] 杨俊武 陈绍军 丁宏义 LONG Bin;YANG Junwu;CHEN Shaojun;DING Hongyi(Unit 63758,PLA,Xiamen 361023,China;Xi’an Satellite Control Center,Xi’an 710043,China)

机构地区：[1]中国人民解放军63758部队,福建厦门361023 [2]中国西安卫星测控中心,陕西西安710043

出　　处：《无线电工程》2020年第3期199-202,共4页Radio Engineering

摘　　要：在一箭多星发射的上升段测控中,通常情况下扩频信号的码间多址干扰对测控影响为主要因素。通过对双星、三星及六星上升段测控的实例分析,分析了卫星天线角对码间多址干扰的重要影响,并提出了降低上升段码间多址干扰的应对措施。面对未来高密度的发射任务,开展码间多址干扰分析,对地面高质量测控支持具有一定的现实意义和参考价值。In the launch section measurement and control of multi-satellite emission,the main factor is the inter-code multiple access interference(ISI)of spread spectrum signal.The influence of satellite antenna angle on inter-code multiple access interference(ISI)is analyzed by analyzing the examples of measurement and control in launch section of double-satellites,three-satellites and six-satellites,and the measures to reduce ISI are proposed.For future high-density transmission tasks,it is of practical significance and reference value to carry out ISI analysis for high-quality ground measurement and control support.

关 键 词：直接序列扩频 码间多址干扰 卫星天线角 

分 类 号：V455[一般工业技术—材料科学与工程]