基于STK的双层卫星星座设计及仿真  

Design and Simulation of Double-layer Satellite Constellation Based on STK

作　　者：张基伟[1] 梁俊[1] 田斌[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《无线电通信技术》2010年第6期52-54,共3页Radio Communications Technology

基　　金：陕西省自然科学基金(2007F03)

摘　　要：轨道与星座的设计是整个卫星通信系统设计的基础,合理的轨道设计与星座配置方案可以显著提高系统的整体性能。结合GEO卫星处理能力强,LEO卫星星地时延小的特点,以提供全球实时接入为目标,提出了一种由LEO卫星提供全球覆盖的GEO/LEO双层卫星网络星座设计方案。运用卫星覆盖带分析方法,确定由48颗LEO卫星完成全球覆盖。通过在STK仿真环境下进行计算机仿真验证,得到所设计的卫星星座可完成全天时全球覆盖。The design of satellite orbit and constellation is the basis for satellite communication system,an effective scheme can improve the whole performance of the system remarkably.This paper presents a global-covered constellation design scheme of GEO/LEO double-layer satellite network that combines GEO satellite＇s strong processing capability with LEO satellite＇s low transmission delay,aiming at providing global real-time access.The design achieves global coverage with 48 LEO satellites by means of Street of Coverage.With computer simulation based on STK,the results show that the constellation can provide real-time and global coverage.

关 键 词：GEO/LEO卫星网络 星座设计 全球覆盖 覆盖带 

分 类 号：TN915[电子电信—通信与信息系统]