中继卫星系统支持多目标系统链路仿真分析

System Link Simulation and Analysis of TDRSS Supporting Multiple-targets

结合中继卫星系统支持多目标应用潜在背景,在系统链路设计时分析星间功率和带宽受限带来的系统载噪比降低,前向链路多个目标共分中继卫星前向转发器功率带来的系统余量不足,以及返向链路多用户干扰引入的误码损失等影响,进行前、返向链路计算和性能仿真,结果对工程设计和应用具有一定的借鉴意义。

Based on the potential that TDRSS supports the multiple-targets application,the effects of limited inter-satellite power and bandwidth that can reduce the system C/N_0,share of the TDRS forward transponder power by multiple targets in the forward link that can cause the lacked system margin,multiple users interference in the return link that can introduce demodulation loss,etc.are analyzed in the system link design.The budget and performance simulation of forward and return link are achieved. This paper provides a reference for the engineering and practical applications.