區(qū)域性中軌道衛(wèi)星移動通信系統(tǒng)時間決定星座設(shè)計
TIME-DEPENDENT CONSTELLATION DESIGN FOR REGIONAL MOBILE SATELLITE COMMUNICATION SYSTEMS
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摘要: 區(qū)域性衛(wèi)星移動通信系統(tǒng)對于發(fā)展中國家具有十分重要的意義，特別是對于中國這樣幅員遼闊且在廣大農(nóng)村地區(qū)缺乏基本通信手段的國家。采用中軌星座是解決這一問題的有效途徑。本文提出了一種用于區(qū)域性系統(tǒng)的中軌星座設(shè)計方法：時間決定星座設(shè)計。該星座可為特定地區(qū)提供性能優(yōu)越的服務(wù)，它提供的服務(wù)可以是時限的，也可以是非時限的。利用這種設(shè)計方法可以為中國設(shè)計經(jīng)濟(jì)的衛(wèi)星移動通信系統(tǒng)星座方案，同時這些星座方案也可為美國大陸提供優(yōu)越的服務(wù)。
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關(guān)鍵詞:
- 衛(wèi)星移動通信;星座設(shè)計;區(qū)域性覆蓋;時間決定
Abstract: Regional mobile satellite communication systems are very important for developing countries, especially for China that lacks the basic communication methods in her large rural areas. Adopting Medium Earth Orbit (MEO) constellation is an effective way for this situation Time-dependent constellation for the regional mobile satellite communication systems is proposed in this paper. The constellation can provide excellent coverage performance for special territory, and the system service provided by the constellation can be time-limited and nontime-limited. The constellation schemes (time-limited and non-time-limited) of the economical mobile satellite communication system for China designed with this method are proposed in this paper, and they also can provide excellent service for United States. -
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