碩士 / 國立臺灣海洋大學 / 通訊與導航工程學系 / 106 / In this the research , the GPS receiverusing a vector delay lock loop structure is investigated to account for multipath .The study gives the better description of the environment for the simulation of signal transmission .The tracking loop system is assisted with receiver autonomous integrity monitoring (RAIM) and fault detection and exclusion(FDE) to avoid signal unlocked .Selection of different designs of Kalman filters comparison of their relative merit sis carried out.
As compared to the scaler tracking loop(STL), one of the merits of the vector tracking loop(VTL) is that the VTL can be assisted when satellite signal outage occurs .However it has also a more serious drawback which is that failure of tracking in one channel may affect the entire system and lead to loss of lock on all satellites.
For improvement of the vector tracking loop, a receiver autonomous integrity monitoring and fault detection and exclusion is developed to prevent the fault of one channel from spreading into the vector tracking loop.
In order to investigate the effect of the signal which received with GPS receiver after the multipath interference ,this thesis will investigate signal reception of simulation C. Loo channel .Finally, the extended Kalman filter and unscented Kalman filter are used to compare the difference between the two kinds of filters.
Keywords :GPS, Vector tracking loop, Signal outage, Integrity monitoring ,Fault detection and exclude, C. Loo channel model.
| Identifer | oai:union.ndltd.org:TW/106NTOU5300011 |
| Date | January 2018 |
| Creators | Chen, Wei-Xu, 陳威旭 |
| Contributors | Wu, Jia-Qi, Zhuo, Da-Jing, 吳家琪, 卓大靖 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 52 |
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