本文選題：GNSS　切入點(diǎn)：連續(xù)性　出處：《導(dǎo)航定位學(xué)報(bào)》2016年01期

【摘要】：連續(xù)性是評(píng)估GNSS性能的重要指標(biāo)之一。針對(duì)空間信號(hào)層面,提出了GNSS空間信號(hào)連續(xù)性的定義,給出了單顆衛(wèi)星空間信號(hào)連續(xù)性的統(tǒng)一模型與算法,在此基礎(chǔ)上,利用GNSS廣播星歷和顧及衛(wèi)星中斷數(shù)據(jù)開展了GPS/GLONASS/BDS/Galileo系統(tǒng)的空間信號(hào)連續(xù)性計(jì)算。結(jié)果表明:剔除計(jì)劃中斷后,BDS三類衛(wèi)星GEO/IGSO/MEO空間信號(hào)連續(xù)性分別達(dá)到0.998 2、0.997 9和0.997。在未剔除計(jì)劃中斷情況下,GPS空間信號(hào)連續(xù)性優(yōu)于0.999 8,GLONASS空間信號(hào)連續(xù)性優(yōu)于0.999 7,Galileo系統(tǒng)空間信號(hào)連續(xù)性優(yōu)于0.997。BDS和GPS衛(wèi)星達(dá)到了各自系統(tǒng)制定的空間信號(hào)連續(xù)性標(biāo)準(zhǔn)。
[Abstract]:Continuity is one of the important indexes to evaluate the performance of GNSS.According to the spatial signal level, the definition of GNSS spatial signal continuity is proposed, and the unified model and algorithm of single satellite spatial signal continuity are given.GNSS broadcast ephemeris and satellite interrupt data are used to calculate the spatial signal continuity of GPS/GLONASS/BDS/Galileo system.The results show that the continuity of GEO/IGSO/MEO space signals of three kinds of satellites is 0.998 ~ 0.997 9 and 0.997 respectively after the interruption of the plan.The continuity of GPS spatial signal is better than that of 0.999 7 0.997.BDS and GPS satellites, and the continuity of spatial signal is better than that of 0.999 8 GLONASS without eliminating the planned interruption. The continuity of the spatial signal is better than that of the 0.997.BDS and GPS satellites, which meet the standards of spatial signal continuity established by their respective systems.
【作者單位】： 解放軍信息工程大學(xué)導(dǎo)航與空天目標(biāo)工程學(xué)院;西安測(cè)繪研究所;
【分類號(hào)】：P228.4

【參考文獻(xiàn)】

中國(guó)博士學(xué)位論文全文數(shù)據(jù)庫(kù) 前1條

1 李作虎;衛(wèi)星導(dǎo)航系統(tǒng)性能監(jiān)測(cè)及評(píng)估方法研究[D];解放軍信息工程大學(xué);2012年

【共引文獻(xiàn)】

中國(guó)期刊全文數(shù)據(jù)庫(kù) 前8條

1 閆志躍;喻國(guó)榮;潘樹國(guó);梁霄;聶文鋒;;Galileo完好性系統(tǒng)中WUL算法分析與改進(jìn)[J];東南大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年S2期

2 胡曉粉;崔如曉;張沖;�；�;;北斗系統(tǒng)衛(wèi)星可見性和精度因子分析[J];導(dǎo)航定位學(xué)報(bào);2014年02期

3 陳望舒;沈佩s，

本文編號(hào)：1706417