The Development, Test and Application of New Technology on Beidou/GPS Dual-Mode Pseudolites

  • Xingli GanEmail author
  • Baoguo Yu
  • Lei Chao
  • Shi Liu
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 340)


Satellite navigation signal was easy to be influenced by urban canyon, highway tunnel, indoor and underground garage. In view of this shading problem, the Beidou/GPS dual-mode pseudolites was developed in China. Firstly, the composition and technical characteristic of pseudolites was introduced. Secondly, Pseudolites compatible with Beidou/GPS signal, navigation message and anti near-far effect was described, then put forward a new high precision time synchronization algorithm between pseudolites and Beidou/GPS. Thirdly, the range stability, navigation chip compatible reception ability, signal coverage and the positioning accuracy was tested in the infield and outfield environment. Test results showed that: by the new time synchronization algorithm, the properties of rubidium clock or crystal oscillator to drive the pseudolites was basically the same, so this pseudolites could use a cheap crystal as the time frequency unit. Under the combined solution between pseudolites and Beidou/GPS, pseudolites could improve the geometric distribution and the positioning accuracy of the navigation system from 10 m up to 5 m. Finally, Verifying the enhanced capabilities of pseudolites in the Mountain valley environment through the practical application data of Jiuzhaigou National Park, the related research results will improve the high availability of China’s Beidou satellite navigation system.


Pseudolites Beidou GPS Time synchronization Joint positioning 


  1. 1.
    Wang J (2000) Pseudolites applications in positioning and navigation: progress and problems. J GPS 1(1):48–56Google Scholar
  2. 2.
    Barnes J (2005) The integration of GPS and pseudolites for bridge monitoring. In: Sanso F (ed) A window on the future of geodesy, IAG Symposium 2005, vol 128, pp 83–88Google Scholar
  3. 3.
    Soon BHK (2003) Flight test results of precision approach and landing augmented by airport pseudolites. In: 16th International technical meeting of the satellite division of the U.S. Institute of Navigation, Portland, Oregan, USA, pp 2318–2325, 9–12 Sept 2003Google Scholar
  4. 4.
    COBB (1997) GPS pseudolites: theory, design, and applications. Stanford. PhD, 1997, pp 39–44Google Scholar
  5. 5.
    GILT Study (2005) Core technology document for pseudolites for enhanced availability. GILT-TRT-DD-15, GALILEO initiative for local technologies. Alenia-Spazio, Thales, IndraGoogle Scholar
  6. 6.
    E Electronic Communications Committee, Compatibility studies between pseudolites and services in the frequency bands 1164–1215, 1215–1300 and 1559–1610 MHz, ECC report 128.
  7. 7.
    Japan Aerospace Exploration Agency. Interface specifications for QZSS” (IS-QZSS Ver 1.0).
  8. 8.
    GPS. gov, interface specification IS-GPS-200.
  9. 9.
    Abt T-L, Soualle F (2005) Optimal pulsing schemes for GALILEO pseudolites signals. Paper presented at ION GNSS 2005, Long Beach, CAGoogle Scholar
  10. 10.
    Kalafus RM, Dierendonck AJ van (1986) Special committee 104 recommendations for differential GPS service. Navigation 33(1):26–41Google Scholar
  11. 11.
    Ye H (2010) The analysis and research of pseudolites near-far effect. J Radio Eng 40(6):32–34Google Scholar
  12. 12.
    Ye H, Yu B (2008) The optimization research of Galileo pseudolites signal pulse modulation scheme. J Radio Eng 37(8):P40–P46MathSciNetGoogle Scholar
  13. 13.
    Progri IF, Michalson WR (2007) Indoor geolocation using FCDMA pseudolites: signal structure and performance analysis. Navigation 54(3):241–256Google Scholar
  14. 14.
    Ford T, Neumann J (1996) HAPPI—a high accuracy pseudolites/GPS positioning integration. In: Proceedings of the 9th international technical meeting of the satellite division of the institute of navigation (ION GPS-96), 17–20 Sept 1996, Kansas City, Missouri, pp 1719–1728Google Scholar
  15. 15.
    Choi IK, Wang J, Han S (2000) Pseudolites: a new tool for surveyors. In: 2nd trans Tasman survey congress, Queenstown, New Zealand, pp 141–149, 20–26 Aug 2000Google Scholar
  16. 16.
    Holden T.(1997) Pseudolites augmented DGPS for land applications, In: 10th International technical meeting of the satellite division of the US institute of navigation GPS ION-97, Kansas City, Missouri, pp 1397–1403, 16–19 Sept 1997Google Scholar
  17. 17.
    Weiser M (1998) Development of a carrier and C/A-code based pseudolites system, In: 11th International technical meeting of the satellite division of the U.S. institute of navigation GPS ION-98, Nashville, Tennessee, pp 1465–1475, 15–18 Sept 1998Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.The 54th Research Institute of China Electronics Technology Group CorporationShijiazhuangChina

Personalised recommendations