Analysis of Doppler-effect on satellite constellations with wavelength division multiplexing architectures  

作　　者：杨清龙 谭立英 马晶 

机构地区：[1]Laboratory of Tunable Laser Technology,Harbin Institute of Technology

出　　处：《Chinese Optics Letters》2009年第1期19-22,共4页中国光学快报（英文版）

摘　　要：With the development of optical space communications, a global space-based optical backbone network is currently proposed by using broadband laser inter-satellite links （ISLs） which enable routing traffic through the space. Satellite optical networking techniques based on wavelength division multiplexing （WDM） ISLs can transit significantly high data rates signals. In this letter, a new function of wavelength excursion due to Doppler-effect is developed for the ISLs, considering the conception of pointing ahead mechanism. The characteristic of wavelength excursion induced by Doppler-effect is examined in one of low earth orbit （LEO） satellite constellation networks named the next-generation LEO system （NeLS） with WDM ISLs assumed, and the influence on its communications caused by wavelength excursion is analyzed.With the development of optical space communications, a global space-based optical backbone network is currently proposed by using broadband laser inter-satellite links （ISLs） which enable routing traffic through the space. Satellite optical networking techniques based on wavelength division multiplexing （WDM） ISLs can transit significantly high data rates signals. In this letter, a new function of wavelength excursion due to Doppler-effect is developed for the ISLs, considering the conception of pointing ahead mechanism. The characteristic of wavelength excursion induced by Doppler-effect is examined in one of low earth orbit （LEO） satellite constellation networks named the next-generation LEO system （NeLS） with WDM ISLs assumed, and the influence on its communications caused by wavelength excursion is analyzed.

关 键 词：Fiber optic networks MULTIPLEXING Multiplexing equipment ORBITS SATELLITES Wavelength division multiplexing 

分 类 号：TN927.2[电子电信—通信与信息系统]