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研究生: 李育華
Li, Yu-Hua
論文名稱: 車載移動式製圖系統之系統率定及其直接地理定位之效能分析
The Calibration Methodology of a Land Vehicle Mobile Mapping System and the Performance Analysis of the Direct Geo-referencing
指導教授: 江凱偉
Chiang, Kai-Wei
饒見有
Rau, Jiann-Yeou
學位類別: 碩士
Master
系所名稱: 工學院 - 測量及空間資訊學系
Department of Geomatics
論文出版年: 2010
畢業學年度: 98
語文別: 中文
論文頁數: 139
中文關鍵詞: 移動式測繪系統率定直接地理定位
外文關鍵詞: Mobile Mapping System, System Calibration, Direct Geo-referencing
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  • 自慣性導航系統在1980年初被引入民用領域,相關的應用發展便與日俱增,其中移動式製圖系統即是近年來最顯著的整合應用之一。具備直接定位系統之車載移動式製圖系統擁有快速資料採集,以及無需地面控制點即可對目標物進行直接地理定位的特性,是空間資訊獲取的利器。本系統採用Meinberg GPS170PCI時鐘卡,實現不同感測器與不同資料採集頻率下的資料同步整合,並利用C-MIGITS III INS/GPS系統記錄平台移動之軌跡及姿態。為使系統具備直接地理定位能力,以地面測量方式建置一足夠精度之控制場,以其內之率定場進行系統率定,檢定場進行系統直接地理定位測試。研究採兩階段率定法,並規劃適當率定策略,而後對其率定參數成果進行直接地理定位能力驗證。經率定及驗證實驗,在多時刻多影像前方交會下本移動式製圖系統具有平面15cm (RMS)及三維 28cm (RMS)的直接地理定位能力,且系統之穩定性高,已能實地運用於災後佈署等應用。預期未來在移動式製圖系統普及性漸高及自主研發技術更為成熟的趨勢下,可望在相關民生用途及軍事技術上有顯著的貢獻。

    Since INS is applied in civil applications, its related developments increase as time goes by. The mobile mapping system is one of the most important civil applicaiotns of INS/GPS integrated systems because of its rapidly direct geo-referencing capability which is useful in Geospatial Information acquisition for Taiwan, a small island with high population. In this study, a low cost INS/GPS integrated POS, was developed and applied to provide the positional and orientation information seamlessly. In addition, the Meinberg GPS170PCI timing board was applied to synchronize measurements provided by those sensors. For system calibration, a high-accuracy ground control field was established by means of the ground survey. The measurements collected by the proposed system from the control field were added to the bundle adjustment procedure to solve the lever-arm and boresight angles between those image sensors. Based on the parameters obtained after calibration, the proposed system could perform direct geo-referencing tasks. This study describes the architecture of the proposed system and the establishment of the control field. Then a two-step approach with some strategies are proposed to conduct system calibration. Finally, the system test, error analysis, and the results of system calibration are presented. The results of the experiment depict that the accuracy of direct geo-referencing capability in term of the positioning accuracy of the proposed is less than 15cm(HPE) and 28cm (3D). The analysis proves the stability of proposed system is high, and the applications in the disaster assessment or the highway inventory investigation are also feasible. While the maturity of related technology becomes higher, the system can provide more contribution in the future.

    摘要 I Abstract II 目錄 IV 表目錄 VII 圖目錄 IX 第一章 緒論 1 1.1 研究背景 1 1.2 研究動機與目的 5 1.3 論文架構 6 第二章 直接地理定位之實現 8 2.1 背景分析 8 2.1 坐標系統與框架 17 2.1.1 慣性坐標框架(The Inertial Frame, i-frame) 17 2.1.2 地心地固坐標框架(The Earth Frame, e-frame) 17 2.1.3 當地水平坐標框架(The Local Level Frame, l-frame) 18 2.1.4 地圖投影坐標系統(The Projection System) 19 2.1.5 載體坐標框架(The Body Frame, b-frame) 20 2.1.6 導航坐標框架(The Navigation Frame, n-frame) 21 2.1.7 物空間坐標框架(The Mapping Frame, m-frame) 22 2.1.8 相機坐標框架(The Camera Frame, c-frame) 22 2.2 坐標框架轉換 22 2.3 近景攝影測量 25 2.3.1 共線條件式 25 2.3.2 直接地理定位 28 第三章 車載移動式製圖系統架構 32 3.1 載體結構 33 3.2 定位定向感測器 36 3.3 影像感測器 44 3.4 資料同步儀器 45 3.5 系統運作 47 第四章 系統率定 50 4.1 相機率定 50 4.2 兩階段率定 52 4.3 兩階段率定法附約制條件 57 第五章 高精度控制場之設置 60 5.1 相機率定場 60 5.2 地面控制場 62 5.2.1 儀器檢定與校正 66 5.2.2 GPS控制測量 70 5.2.3 導線測量 76 5.2.4 三邊測量方法實施加密控制測量 79 5.2.5 水準高程控制測量 81 5.2.6 全站儀採光線法三維定位 83 第六章 成果與討論 88 6.1 相機率定 88 6.2 固定臂及軸角率定 90 6.2.1 第一次率定實驗 91 6.2.2 第二次率定實驗 99 第七章 移動式製圖系統之實際應用 121 7.1 莫拉克颱風勘災 121 第八章 結論與未來建議 128 參考文獻 131 附錄 136

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