Joint Space-Time Kalman Filtering Technique for Global Positioning System Receivers
| Autor: | Shih-chieh Kuo, 郭士頡 |
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| Rok vydání: | 2006 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 94 We address the problem of navigation data demodulated by an adaptive Global Positioning System (GPS) receiver, which employs an antenna array for signal reception. Additionally, we investigate joint space-time GPS signal processing techniques for an asynchronous GPS receiver. A spatial and temporal joint Kalman filtering (KF) method is proposed for GPS receivers with multiple antenna elements interferenced by high-power jammers and other satellites. The conventional space-time adaptive GPS receivers included in the matched-filter (JMF), minimum mean-square error (MMSE), minimum variance distortionless response (MVDR). Then we refering to the conjugate gradient (CG) algorithms and auxiliary vector (AV) are investigated as well. Simulation results show that the proposed CG, AV and KF technique provided approaching or superior bit-error-rate (BER) performance and convergence characteristic while compared with conventional GPS receivers. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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