全球定位系统
全毬定位繫統
전구정위계통
GPS WORLD OF CHINA
2015年
2期
36-39
,共4页
北斗卫星导航系统%伪距%差分%基线解算%精度
北鬥衛星導航繫統%偽距%差分%基線解算%精度
북두위성도항계통%위거%차분%기선해산%정도
BDS%pseudorange%differential%baseline solving%precision
阐述了北斗卫星导航系统（BDS ）伪距差分定位模型，比较了该模型与G PS伪距差分定位模型的差异。结合实例对BDS和GPS的基线解算进行了比较，分析了两模型基线解算结果的精度，发现伪距差分能达到亚米级至米级的精度，可为BDS地基增强建设提供新思路；并探讨了BDS卫星可见数对伪距差分定位的影响，得出有益的结论。
闡述瞭北鬥衛星導航繫統（BDS ）偽距差分定位模型，比較瞭該模型與G PS偽距差分定位模型的差異。結閤實例對BDS和GPS的基線解算進行瞭比較，分析瞭兩模型基線解算結果的精度，髮現偽距差分能達到亞米級至米級的精度，可為BDS地基增彊建設提供新思路；併探討瞭BDS衛星可見數對偽距差分定位的影響，得齣有益的結論。
천술료북두위성도항계통（BDS ）위거차분정위모형，비교료해모형여G PS위거차분정위모형적차이。결합실례대BDS화GPS적기선해산진행료비교，분석료량모형기선해산결과적정도，발현위거차분능체도아미급지미급적정도，가위BDS지기증강건설제공신사로；병탐토료BDS위성가견수대위거차분정위적영향，득출유익적결론。
T he model of BDS pseudorange differential positioning is introduced ,and the differences between BDS and GPS for pseudorange differential positioning are discussed . Through two examples of baseline solving ,it is proved that the precision on a level of meter and even sub‐meter may be reached with BDS for pseudorange differential positioning which is beneficial for the development of BDS ground based augmentation system .Furthermore the influence of the number of visible satellites on the precision is discussed and some benefi‐cial conclusions are made.
