The wide-area difference system for the regional satellite navigation system of COMPASS

被引：29

作者：

Cao YueLing ^{[1
,2
]}

Hu XiaoGong ^{[1
]}

Wu Bin ^{[1
]}

Zhou ShanShi ^{[1
]}

Liu Li ^{[3
]}

Su RanRan ^{[3
]}

Chang ZhiQiao ^{[3
]}

He Feng ^{[3
]}

Zhou JianHua ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

[3] Beijing Global Informat Applicat & Dev Ctr, Beijing 100094, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2012年 / 55卷 / 07期

基金：

中国国家自然科学基金;

关键词：

COMPASS; equivalent satellite clock error; ionospheric grid; multipath error; positioning error;

D O I：

10.1007/s11433-012-4746-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The regional satellite navigation system of COMPASS (Phase I) provides both open services and authorized services. Authorized services offer differential corrections and integrity information to users to support higher positioning, navigation and timing precision. Experimenting with real data, positioning accuracy is estimated with a 3GEO/4IGSO COMPASS constellation. The results show that with dual-frequency and single-frequency pseudo-range measurements, the positioning errors are respectively 8 and 10 m (RMS) for open service users, while for authorized users, the errors are 4 and 5 m (RMS), respectively. The COMPASS constellation geometry may cause large error to occur in the height component by 7-9 m for dual-or single-frequency users, which can be effectively reduced with the differential corrections supplied by the authorized services. Multipath errors are identified and corrected for COMPASS, resulting in 25% positioning accuracy improvement for dual-frequency users and 10% improvement for single-frequency users.

引用

页码：1307 / 1315

页数：9

共 13 条

[1] Ionospheric delay corrections for single-frequency GPS receivers over Europe using tomographic mapping [J].

Allain, Damien J. ;

Mitchell, Cathryn N. .

GPS SOLUTIONS, 2009, 13 (02) :141-151

[2]

Chen JP, 2001, THESIS MAPPING INFOR

[3]

Feng XC, 2010, GNSS WORLD CHINA, V01, P11

[4] From GPS and GLONASS via EGNOS to Galileo - Positioning and Navigation in the Third Millennium [J].

Hein, Guenter W. .

GPS SOLUTIONS, 2000, 3 (04) :39-47

[5]

Huang S L, 2010, GEOM SCI ENG, V03, P28

[6]

[焦文海 JIAO WenHai], 2011, [中国科学. 物理学, 力学, 天文学, Scientia Sinica Physica, Mechanica & Astronomica], V41, P521

[7]

Lyon AW, 2006, I NAVIG SAT DIV INT, P906

[8]

Song WL, 2007, RADIO ENG CHINA, V37, P50

[9]

Wen R H, 2010, RADIOENGINEERING, V40, P42

[10]

Wu Xiaoli, 2011, Geomatics and Information Science of Wuhan University, V36, P1218

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