多音束測深儀是一種可大規模且快速測繪海底地形的先進技術，然所獲得之原始水深資料，若不經過資料品管及修正，則常因為整體的儀器軸系安裝偏差，造成不合理的水下地形。
目前海測實務上，常因不易尋找率定作業適合之海底地形或海床特徵物等問題，而造成率定作業上之困擾。本研究嘗試利用有別於傳統使用垂直方向剖面（vertical profile）計算方式，改採用少量的海底地形或海床特徵物之水平方向剖面（horizontal profile）來進行疊合計算。並利用測線條件與海床條件來消除各偏差角之相關性，以達到獨立求解之目的，最後設計一套新的率定修正順序，期望未來能以此概念運用在較普遍性之海底地形特徵物或容易回收之人造特徵物上來進行率定，以解決不易尋找適合海底地形或海床特徵物之問題。本研究最後之率定結果與商用軟體（CARIS HIPS）率定結果一致，並以此率定成果進行相互交叉之檢核線水深精度評估，其結果可通IHO特等精度標準，顯示本研究率定結果不僅適用率定區，更可適用於全測區，可證明本研究方法之可行性。

Multibeam system is a rather new technique for generating huge digital terrain model quickly. If the primitive data does not perform quality control and the calibration process, inconsistency among the axes of transducer, motion sensor and gyrocompass may results in unreasonable underwater topography.
The problem in the hydrographic surveying in the practice is not easy to seek for the suitable seabed or underwater feature for patch test at present. This research attempts to use fewer horizontal cross section of an underwater feature to compute roll, pitch and yaw deviation angle that differs from traditional vertical profile computing approach for patch test. And using different survey line combination and different underwater topography condition to achieve independent solution of angle deviation . We also design the new processing order for patch test. It hopes to utilize this concept to carry out patch test by the common underwater feature or recycling man-made object for resolving this problem in the future.
The experimental results show that new calibration can get the same achievement as the traditional calibration by the CARIS HIPS software, and the calibration results applied in the cross check lines can pass through IHO special standard. It shows that the calibration results not only suit for calibration survey lines, but also good for rest of the area. It proves the proposed new patch test is feasible.

目錄
中文摘要…………………………………………………...Ⅰ
Abstract……………………………………………………Ⅱ
誌 謝………………………………………………………..Ⅲ
目 錄………………………………………………………..Ⅳ
圖目錄……………………………………………………...Ⅵ
表目錄.……………………………………………………..Ⅹ
第一章 緒論………………………………………………...1
1-1 前言……………………………………………….........1
1-2 文獻回顧……………………………….........................2
1-3 研究動機與目的……………………………….............6
1-4 研究方法………………………………………….........7
第二章 傳統多音束測深系統疊合校正作業原理回顧…...9
2-1 傳統時間延遲偏差量之修正法………………….......11
2-2 傳統橫搖角偏差量之修正法………………………...12
2-3 傳統縱搖角偏差量之修正法………………………...14
2-4 傳統航偏角偏差量之修正法………………………...16
第三章 利用特徵物之水平剖面作為疊合校正之方法.....18
3-1 架設參數對水平及垂直位置之影響………………...18
3-2 海床坡度對水深點網格化之影響…………………...26
3-3 水平與垂直方向剖面特性探討……………………...29
3-3-1 垂直方向剖面特性…………………………….......31
3-3-2 水平方向剖面特性…………………………….......36
3-4 橫搖角偏差量之新作法……………………………...42
3-5 航偏角偏差量之新作法……………………………...44
3-6 縱搖角偏差量之新作法……………………………...46
3-7 各偏差角度修正順序之探討………………………...48
第四章 實測資料分析及討論………………………….....56
4-1 實驗設計……………………………………………...56
4-1-1 A區(澎湖外海)…………………………………......56
4-1-2 B區(中山大學外海)………………………………..57
4-2 偏差角度估算………………………………………...59
4-3 分析與討論…………………………………………...72
4-3-1 水深較差平均值…………………………………...75
4-3-2 內部精度…………………………………………...76
4-3-3 IHO水深精度…………………………………........77
第五章 結論與建議..……………………………………...80
5-1 結論…………………………………………………...80
5-2 建議……………………………………………….......82
參考文獻…………………………………………………..83

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