碩士 / 國立成功大學 / 民航研究所 / 100 / Global Positioning System (GPS) is the enabling technology of the next generation Communication, Navigation, Surveillance, and Air Traffic Management (CNS/ATM) system for civil aviation applications including the time synchronization of the air data network, the air communication network, and aircraft navigation for approach and landing. However, the GPS signal is weak so that it is vulnerable to both intentional and unintentional Radio Frequency Interference (RFI). If the GPS signal is interfered intentionally or unintentionally, it would be a significant impact on the normal CNS/ATM system operation. Therefore, an alternate aviation navigation system is proposed in this research to maintain the CNS/ATM system operation in Taipei Flight Information Region (FIR) when the positioning quality of the GPS signal is bad or when the GPS signal is simply unavailable.
The alternate aviation navigation system adopts the Wide Area Multilateration (WAM) structure which is one of the backup navigation concepts for the Alternative Position, Navigation and Timing (APNT) system. In this thesis, the WAM structure is implemented with the Automatic Dependent Surveillance-Broadcast (ADS-B) system by the Time Difference of Arrival (TDOA) method. The performance of the alternate aviation navigation system is evaluated by the Cramer-Rao lower bound (CRLB) and the Circular Error Probability (CEP). Moreover, another key factor of the radio navigation system performance, the geometric distribution of the ground stations, is discussed. Specifically, the effects of the geometric distributions are presented by the Horizontal Dilution of Precision (HDOP) and the level of positioning performance for Taipei Flight Information Region (FIR).
| Identifer | oai:union.ndltd.org:TW/100NCKU5294007 |
| Date | January 2012 |
| Creators | Hou-JenChen, 陳厚任 |
| Contributors | Shau-Shiun Jan, 詹劭勳 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 63 |
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