The Radio Positioning Simulation System Using AM Broadcast Stations
| Autor: | Wu Der-Hua, 吳德華 |
|---|---|
| Rok vydání: | 1993 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 81 In this thesis, a relative time positioning algorithm is proposed to determine the three-dimensional coordinates of a measured point. It requires four transmitters. One provides the reference timing signal and the others receive and retransmit it to the measured point. The receiver at the measured point receives the timing signal from each of four transmitters, then detects three propagation time delays and uses three formulas to determine the position. We will make use of the existing AM broadcast stations with hybrid AM-BPSK modulation to accomplish the positioning measurement. The coverage area of AM propagation wave is limited so that this algorithm should provide the measurement in the local positioning region. The handoff is necessary during the measured point moving from one to another local positioning region. Therefore, using the handoff algorithm described in this thesis the positioning measurement can be executed in any region. In addition to describe the whole system principles, this thesis places emphasis upon the hardware and software design. The proposed positioning system possesses some superior characteristics. It merely adds some equipment in the AM station and then we can achieve the positioning measurement using the user equipment designed in this thesis. Hence, it is a convenient and accurate Radio Positioning System (RPS). |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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