Yu. A. Soloviev - Dr.Sc. (Eng.), Professor, Leading Research Scientist master specialist, STC "Internavigation", radionavigation, integration of navigation system, PNT planning. E-mail: yuasol37@yandex.ru
V.M. Tsarev - Ph.D. (Eng.), general director of STC «Internavigation», radionavigation, PNT planning. E-mail: internavigation@rgcc.ru

The survey considers the present state of the China satellite navigation system BeiDou/COMPASS. The orbit constellation is reviewed on various development steps, service area, measurement accuracy, availability, continuity, signal/code structures. When fully deployed, the space constellation of BeiDou will consist of five Geostationary Earth Orbit (GEO) satellites, twenty-seven Medium Earth Orbit (MEO) satellites and three Inclined Geosynchronous Satellite Orbit (IGSO) satellites. The current BeiDou space segment consists of 5 GEO satellites, 5 IGSO satellites and 4 MEO satellites. BeiDou adopts the China Geodetic Coordinate System 2000 and uses the BeiDou navigation satellite system time related to the Coordinated Universal Time (UTC). The BeiDou signal multiplexing mode is Code Division Multiple Access (CDMA). The satellites must broadcast 11 signals with BOC, MBOC, AltBOC and QPSK modulation. The ground control segment consists of the Master Control Station (MCS), Time Synchronization/Upload Stations (TS/US) and Monitor Stations (MS). The BeiDou has four types of services: open, authorized, wide-area differential, short messages. At the current stage, the BeiDou regional service capability has been achieved, which can provide continuous open services to the area, including the most part of the region from 55°S to 55°N, 70°E to150°E: position accuracy (95%)10 m (horizontal and vertical), velocity accuracy ≤0.2m/s, time accuracy ≤50ns (≤20ns for full scale BeiDou). The survey considers the BeiDou user receivers and future development.

 

1. Solov'ev Ju.A., Ustyuzhanin D.A. Apriornaya oczenka tochnosti opredeleniya koordinat kitajskoj regional'noj sistemoj Beidou-1 // Kosmonavtika i raketostroenie. 2009. № 2 (55).
2. Solov'ev Ju.A., Carev V.M., Korovin A.V., Ustyuzhanin D.A. Razvitie global'ny'x navigaczionny'x sputnikovy'x sistem i shirokozonny'x funkczional'ny'x dopolnenij // Radiotexnika. 2009. №7.
3. BeiDou Navigation Satellite System Signal In Space Interface Control Document (Test Version). China Satellite Navigation Office, December 2011.
4. Operativnaya informacziya // Novosti navigaczii. 2012. № 4. S. 55.
5. BeiDou Navigation Satellite System Signal-In-Space Interface Control Document. Open Service Signal B1I (Version 1.0). China Satellite Navigation Office, December 2012.
6. BeiDou Navigation Satellite System Open Service Performance Standard (Version 1.0). China Satellite Navigation Office, December 2013.
7. Yang Y. et al. Generalised DOPs with Consideration of the Influence Function of Signal-In-Space Errors // The Journal of Navigation. RIN. 2011. V. 64. R. S3-S18.
8. Xue R., Zhu Y. A Comparative Study of Ground Based Augmentation System for BeiDou and GPS // Proceedings of the 25th International Technical Meeting of the Satellite Division of the Institute of Navigation. ION GNSS 2012. Sept. 17-21. 2012.
9. Yang Q. COMPASS/BeiDou Navigation Satellite System Development. The 4th meeting of ICG. 2007.
10. Operativnaya informacziya // Novosti navigaczii. 2009. № 3. S. 51. gpsworld.com 28.08.2009.
11. Jarly'kov M.S., Jarly'kova S.M. Korrelyaczionny'e funkczii AltBOC-signalov perspektivny'x sputnikovy'x radionavigaczionny'x sistem // Novosti navigaczii. 2013. № 4.
12. Jiao W. et al. Monitoring and Assessment of GNSS Open Services // The Journal of Navigation. RIN. 2011. V. 64. R. S19-S29.
13. Gibbons G. BeiDou to Restart Satellite Launches Next Year, Shift B1 Signal Frequency after 2016. May 1. 2013. http://www.insidegnss.com/node/3537
14. Ge M. et al. http://www.gpsworld.com/what-is-achievable-with-the-current-compass-constellation/4.05.2013
15. http://www.beidou.gov.cn/
16. ComNav Offers GPS+BeiDou Board. http://www. gpsworld.com/comnav-offers-gpsbeidou-board/10.05.2013
17. Shaowei H. Design Technology and Tests for Multi GNSS Receiver. Proceedings of the 25th International Technical Meeting of the Satellite Division of the Institute of Navigation. ION GNSS 2012. Sept. 17-21. 2012.
18. ComNav BeiDou+GPS Receiver Provides Positioning in Antarctic. http://www.gpsworld.com/comnav-beidougps-receiver-provides-positioning-in-antarctic/ 10.05.2013.
19. Operativnaya informacziya // Novosti navigaczii. 2013. № 4. S. 62.
20. http://www.spirent.com/go/BeiDou-2-utm_source=Inside%20GNSS%20website&utm_medium=Banner&utm_campaign=BeiDou 16.05.2013.
21. Donghui W. et al. Compass Satellite Orbit Determination Based on Inter-satellite and Satellite-to-station Ranging // Proceedings of the 25th International Technical Meeting of the Satellite Division of the Institute of Navigation. ION GNSS 2012. Sept. 17-21. 2012.
22. Jiaging M. Development Status and Plan of BeiDou Navigation Satellite System. China Satellite Navigation Office. 8th International Navigation Forum, Expocentre Fairgrounds, Moscow, Russia, April 23-24, 2014.
23. Xue R. Application of COMPASS in Civil Application of China // Proceedings of the 25th International Technical Meeting of the Satellite Division of the Institute of Navigation. ION GNSS 2012. Sept. 17-21. 2012.
24. Ding X. Development of BeiDou Navigation Satellite System. ION GNSS 24th International Technical Meeting of the Satellite Division, Portland, Oregon, 19-23 Sept. 2011.
25. Chen J. Analysis of the GNSS Augmentation Technology Architecture. ION GNSS 24th International Technical Meeting of the Satellite Division, Portland, Oregon, 19-23 Sept. 2011.
26. http://www.glonass-center.ru/content/news/?ELEMENT_ID =803 30.05.2014