區(qū)域衛(wèi)星定位系統(tǒng)的星座設(shè)計
CONSTELLATION DESIGN FOR REGIONAL SATELLITE POSITIONING SYSTEM
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摘要: 星座方案選擇對衛(wèi)星定位系統(tǒng)的性能具有很大影響,它應(yīng)提供多重覆蓋并滿足一定的幾何關(guān)系。該文首先針對衛(wèi)星覆蓋特性和DOP因子進行了闡述,基于所得結(jié)果,對區(qū)域定位星座進行了研究,并利用GPS的參考數(shù)據(jù),對所給定位星座的定位性能進行了初步估算。最后給出了結(jié)論。
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關(guān)鍵詞:
- 區(qū)域衛(wèi)星定位系統(tǒng); GPS; DOP; 覆蓋特性
Abstract: Constellation design has great influence on the performance of satellite positioning system, the constellation should provide multi-coverage and satisfy certain geometry. First, this paper presents coverage property of satellites and DOP factors, based upon these, researches for regional satellite positioning system and relevant estimates of positioning performance are provided. Finally, the application of and some questions about regional positioning constellation are explored, and conclusion is also given. -
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