Dissertation > Excellent graduate degree dissertation topics show

Research on Corrected Higher-Order Ionospheric Delay Error with Geomagnetic Effect

Author: FanShengJun
Tutor: LiZhengHang
School: Wuhan University
Course: Geodesy and Survey Engineering
Keywords: GPS Ionospheric higher-order error Geomagnetism TEC Quadraric surface fitting model
CLC: P228.4
Type: Master's thesis
Year: 2005
Downloads: 169
Quote: 11
Read: Download Dissertation

Abstract


This paper describes systematically the fundamental knowledge of ionosphere and geomagnetism. It introduces the theory of electromagnetic wave propagating within the ionosphere and geomagnetism, then expounds the correcting methods of the ionospheric delay error and the ionospheric model in common use and their efficiency. The formula of correcting higher-order ionospheric error is deduced by Appleton-Hartree formula, and the triple-frequency corrected model is deduced too. That carrier phase and pseudo-ranges observations corrected ionospheric error with triple-frequency liner combination is compared , then discussed the feasibility analysis. It put forward a new project to correct the second-order ionospheric error by considering the geomanetic effect. If it make use of International Geomagnetic Reference Field- 2005 coefficient to compute space geomagnetic vector, we can estimate the second-order ionospheric delay error by dual-frequency observation. In order to overcome the shortcoming of complicated algorithm, the author advanced the method that apply quadraric surface fit space geomagnetic vector to estimate the second-order ionospheric delay error.Based on the forenamed theory, Estimated the Total Electron Content including the second-order ionospheric error. Established the 2° ×2° geomagnetic vector grid-model over mostly area of China , then processed some dual-frequency data to indicate the algorithm is feasible and correct. Obtained some useful conclusion after analyzing the result of data processing.

Related Dissertations

  1. Research and Realization on Synchronization Technology of High Sensitivity GNSS Software Receiver,P228.4
  2. Study on Attitude Determination Method of Distributed Moving Warship OTHR System,P228.4
  3. Study on the Locomotive Dynamic Supervision System,U284.48
  4. Research on Techniques of Information Acquisition and Location in Pavement Roughness Inspection,U416.2
  5. Research on Temprature Controling Technology of Laser Diode with Thermoelectric Cooler,TN248.4
  6. Anti-Jam Technique Research for GPS,P228.4
  7. Design of GPS Information Receiving System Based on Nios Ⅱ,TN967.1
  8. GIS and GPS- based Land Resources dynamic inspection system design and implementation,P208;P228.4
  9. Design and Implementation of Hydrological Information Automatic Monitoring System,P335
  10. Study on the Technique of Information Fusionapplied to Enbedded Driver Fatigue Detection,TP368.12
  11. Research on CP Mircrostripantenna with Wide Beamwidth Andarrayantenna for GPS Band Application,TN822
  12. Software Approach to Implement Power Optimization in Embedded Handheld Mobile Gis Device,TP311.52
  13. Study of GPS Data De-noising Method Based on Wavelet and Kalman Filtering,P228.4
  14. A Design of Human Balance Monitoring System Based on Embedded Linux,TP274
  15. Design and Implementation of mobile positioning and monitoring system based on GPRS,TP311.52
  16. The Design and Implementation of C/S-Based Vehicle Remote Monitoring System,TP277
  17. ARM-based GPS positioning algorithm research and implementation,P228.4
  18. Multi- channel GPS receiver design and implementation of anti-jamming,P228.4
  19. Shortwave radio frequency source synchronous design and research,TN74
  20. Based GPS_GIS fault breaker Positioning System Design and Implementation,TP368.1
  21. Study on the Method of Traffic State Identification for Road Based on GPS Information,U491

CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Geodesy > Satellite geodesy and space geodesy > Global Positioning System (GPS)
© 2012 www.DissertationTopic.Net  Mobile