透明转发器在两种条件下的系统性能分析  

Performance of Transparent Transponder Satcom System in Two Different Conditions

作　　者：郭道省[1] 张邦宁[1] 李际平[1] 沈忠良[1] 

机构地区：[1]解放军理工大学通信工程学院无线通信系,江苏南京210007

出　　处：《军事通信技术》2003年第3期24-28,共5页Journal of Military Communications Technology

摘　　要：文中研究了扩频和非扩频两种系统条件下存在上行干扰时透明转发器卫星通信系统的性能。首先对透明转发器卫星通信系统在上行干扰条件下的性能进行分析,给出了性能计算的数学表达式。然后对这两种条件下的具体系统进行分析。研究表明,通常认为无抗干扰能力的窄带多址技术,在干扰条件下同样具有一定的健壮性;而且,导致整个系统不能工作的干扰信号功率通常比导致转发器进入饱和状态的功率要小一些。The performance of transparent transponder satcom system in two different conditions with uplink jamming is investigated. Firstly the performance of transparent transponder satcom system to uplink interference (or jamming) is analyzed and the closed expression for calculating BER performance is presented. Then for two different detailed systems the analysis is done. It is shown that narrowband multiple accesses technology has some robust with jamming. Also the jamming level required to disable all users is slightly lower than that causing the transponder to enter saturation state.

关 键 词：透明转发器 上行干扰 扩频 抗干扰能力 

分 类 号：TN973.3[电子电信—信号与信息处理]