Full Waveform Analysis for Refining Positioning Accuracy of Airborne LiDAR Systems
| Autor: | Hui-Zhi Wang, 王滙智 |
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| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 Full waveform analysis has been becoming one of the options for airborne LIDAR systems. Due to having the complete echo of laser pulse on the surface/object it hits, the detailed scene interpretation as well as the precise positioning performance can be expected if waveform processing and timing determination are to be well considered. Therefore, a geometric positioning and a full waveform simulator are designed in this study to generate the full echo of a laser pulse together with its geometric parameters. By using these two simulators, the author demonstrates the impacts of employing different algorithms of timing determination on the positioning accuracy. In addition, waveform processing, mainly on pre-processing and multi-waveform decomposition, and precise position determination are deeply investigated. The experiments reveal that the more precise position of the building boundary can be obtained by means of the proposed full waveform analysis as compared to the traditional one that does not include this function. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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