摘要
本論文主要在探討多路徑效應對於GPS高程測量的影響，藉由正確掌握多路徑效應發生的時機與數量，進而分析多路徑效應變化對GPS高程測量之影響。
實驗設計：硬體採用雙頻GPS接收儀（Trimble 4000SSE、Leica CR233及Leica SR530）及接收天線（4000ST L1/L2 Geodetic、SR399及AT520），軟體採用多路徑偵測程式（TEQC）及基線解算軟體（Bernese）。
本論文的目標是評估天線多路徑效應對GPS高程測量結果之影響，祈能對GPS測量之高程精度有所改善。

ABSTRACT
The subject of this research is to study the multipath effect of GPS height surveying. This algorithm is derived to be the index of multipath occurred and to be applied to assist editing cycle slips of carrier phase measurements.
The hardware used in the designed experiments is dual-frequency GPS receivers (Trimble 4000SSE、Leica CR233 and Leica SR530) and antennas（4000ST L1/L2 Geodetic、SR399 and AT520）. As for the software, the developed multhipath detecting program(TEQC) and existing baseline computation programs(Bernese) are adopted.
Thus, the main goals of this research is to study the multipath effect on GPS height surveying, and to modify the specification of GPS survey.

目錄
中文摘要………………………………………………………………Ⅰ
英文摘要………………………………………………………………Ⅱ
誌謝……………………………………………………………………Ⅲ
目錄……………………………………………………………………Ⅳ
圖目錄…………………………………………………………………Ⅶ
表目錄…………………………………………………………………Ⅹ
第一章 前 言…………………………………………………….1
1-1研究動機與目的………………………………………………….1
1-2文獻回顧………………………………………………………….1
1-3研究方法………………………………………………………….3
1-4研究內容………………………………………………………….4
第二章 GPS相對定位之理論基礎……………………………………5
2-1 GPS相對定位理論……………………………………………..5
2-2 GPS載波相位觀測方程式………………………………………7
2-2-1 GPS載波相位一次差觀測方程式……………………………10
2-2-2 GPS載波相位一次差觀測方程式……………………………11
2-2-3 GPS載波相位三次差觀測方程式……………………………12
第三章 GPS多路徑效應原理及偵測程式…………………………….15
3-1 GPS多路徑效應基本原理……………………………………….15
3-2 TEQC使用簡介……………………………………………………18
3-2-1 格式轉換………………………………………………………18
3-2-2 RINEX檔案編輯……………………………………………….19
3-2-3 品質檢查………………………………………………………20
3-2-4 使用qcview繪圖……………………………………………..20
第四章 實驗說明及資料處理…………………………………………22
4-1 實驗方法…………………………………………………………22
4-2 實驗步驟說明……………………………………………………22
4-3 短基線場實驗……………………………………………………24
4-4 資料處理…………………………………………………………25
4-4-1 Bernese 4.0版軟體介紹及計算流程……………………….25
4-4-2 GPS數據處理採用模式……………………………………….28
第五章 研究成果與分析…………………………………………….29
5-1 同型接收儀，不同天線高度量測結果……………………….29
5-2 同型接收儀，不同時段之量測結果………………………………….38
5-3 中長基線之解算成果…………………………………………….59
5-4 設立人工屏蔽於不同方向之多路徑偏移值…………………….60
5-5 實驗結果之分析比較…………………………………………….61
第六章 結論與建議…………………………………………………….64
參考文獻………………………………………………………………..65
附錄一…………………………………………………………………..66
附錄二………………………………………………………………… .72
作者簡歷……………………………………………………………….107

參考文獻
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