Dissertation > Excellent graduate degree dissertation topics show

Polarized-Light/Geomagnetism/GPS/SINS Integrated Navigation Algorithm

Author: LiMingMing
Tutor: HuangXianLin
School: Harbin Institute of Technology
Course: Navigation,Guidance and Control
Keywords: integrated navigation federated Kalman filtering polarized-light geomagnetism fault-tolerance
CLC: V249.328
Type: Master's thesis
Year: 2008
Downloads: 195
Quote: 2
Read: Download Dissertation


High accuracy, high credibility and low cost are the basic requirements of integrated navigation system. It is the key technique that how to fuse many navigation systems and design the high-accuracy, robust integrated navigation system. Based on the research of modern navigation performance and information fusion theory, a polarized-light/geomagnetism/GPS/SINS integrated navigation algorithm is designed, with a navigation system which is applicable to high-altitude unmanned reconnaissance aircrafts as background.Usually, sensors utilized in the navigation systems have different sampling rates. Hence, a novel data fusion strategy in the federated Kalman filtering is proposed to tailor the algorithm to the multirate sampling systems. And the methods of“Local State Expansion”and“Local State Truncation”are given, because the dimensions of subsystem vectors are different. The numerical simulations are given that use the filtering arithmetic.To increase the attitude errors observation performance of GPS/SINS integrated navigation system, the polarized-light and geomagnetism aided navigation methods are proposed. The principles of the polarized-light aided attitude determination approaches are described, and the equations of the polarized- light measurement models of attitude errors are developed. An integrated scheme of the polarized-light/geomagnetism/GPS/SINS integrated navigation is given, and the performance of this new scheme is compared with that of the GPS/SINS integrated system. The results indicate that our scheme has a stable capability of attitude error correction.In order to improve the fault-tolerance of the polarized-light /geomagnetism/GPS/SINS integrated navigation system, the theory of fault-tolerant design for integrated navigation systems is studied in the last part of this dissertation.χ2-detection method for validity of local filters measurement data is mainly studied. When outliers exist in measurement, a fault diagnosis scheme is studied. Based on Residual-χ2-detection method, a fault-detection-isolation-reconstruction algorithm for local filters is designed in this polarized-light/geomagnetism/GPS/SINS integrated navigation system. The simulation results show that it will restrain wrong alarm well which caused by outliers, and the fault-tolerance of the integrated navigation system is improved.

Related Dissertations

  1. The Research of Navigation Multi-Sensor Data Fusion Technology Based on Micro Unmanned Platform,V249.32
  2. Algorithm Research on SINS/GPS Integrated Navigation Syste,V249.328
  3. The Research of Fault-Tolerant Techniques for Parallel/Distributed Network Simulator PDNS,TP302.8
  4. Research on Checkpointing in Mobile Computing Environment and Modeling with Petri Nets,TP301.1
  5. AUV Integrated Navigation Algorithm Study and System Implementation,U666.1
  6. ARM Embedded System for H.264 decoding research,TP368.1
  7. High-performance storage system is a key technology research,TP333
  8. Fault-tolerant real-time systems based on energy-efficient scheduling algorithm,TP316.2
  9. Analysis Methods for Energy Transmission and Polarization State of Traced Rays in Optical Systems,O436.3
  10. The Monte Carlo Study of Polarized Light Propagation in Atmosphere: Simulation and Application,O436.3
  11. Research about Topology Fault-tolerance Scheme in Wireless Multi-hop Networks,TN929.5
  12. Research of Information Fusion on Inertial/ Geophysical Integrated Navigation,V249.328
  13. The Principle and Design of Distributed Computing Platform Based on MapReduce,TP311.52
  14. Research on the Geomagnetic Navigation Matching Algorithm and the Geomagnetic Field Simulation System,V249.3
  15. Research and Design of the Navigation Computer Based on SOPC,V249.328
  16. Research on Fault-Tolerant Ability of Dynamic Web Service Composition under Multi-Object Optimization,TP393.09
  17. Ground exploration robot integrated navigation system,TP242.3
  18. Research on Naivgation and Guidance Key Technology of Small UAV,V249.1
  19. Research on Sins/GPS/Magnetic Compass Integrated Navigation System,TN967.2
  20. Research on Fault Tolerance Design of Hight Speed Synchronous System Based on ATCA Architecture,TN914

CLC: > Aviation, aerospace > Aviation > Aircraft instrumentation,avionics, flight control and navigation > Flight control system and navigation > Navigation > Navigation system > Integrated Navigation System
© 2012 www.DissertationTopic.Net  Mobile