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題 名 | 小區域GPS網形平差計算及分析=GPS Network Adjustment and Analysis |
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作 者 | 李振燾; 朱明亮; | 書刊名 | 測量工程 |
卷 期 | 42:4 2000.12[民89.12] |
頁 次 | 頁37-58 |
分類號 | 440.98 |
關鍵詞 | 全球定位系統; 靜態測量; 基線處理; 網形平差; 網形分析; Global positioning system; GPS; Static surveying; Baseline processing; Network adjustment; Network analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 本文針對GPS網形平差計算之過程與結果加以分析研究,實驗網採GPS靜態測量方式進行共有15個控制點,點與點間平均距離約150公尺,均勻分佈。用於網形平差計算之觀測量除GPS基線向量外,尚有傳統之角、邊及直接水準觀測量,使AOSS與GeoLab兩套軟體作網形平差計算。首先在最小約制平差條件下,將GPS實驗網分為主控網與次級網兩個階段,主控網之目的是將ITRF94坐標系統由CCSB引測至實驗區周圍的5個控制點,作為次級網網形平差計算之已知點;次級網設置之目的是推求其餘8個未知點之點位坐標。資料處理使用AOSS套裝軟體,主控網與次級網分開作基線處理與平差計算,其主要在分析最小約制條件下網形結構改變與控制點組合改變對網形平差結果之影響。再者研究內容是測試不同軟體對於同一GPS網基線向量作平差計算,其結果有何差異及針對結合傳統觀測量與GPS觀測量作網形平差計算過程作研究分析。 |
英文摘要 | The subject of this research is to investigate the network adjustment procession with GPS and conventional observations. The experimental network have 15 control points which are relative regularly distributed. Software AOSS and Geolab were used to perform the network adjustment tasks. The consequence of minimum constraint on GPS network adjustment was examined and the dominion of different programs on GPS network structure and data combination of GPS and conventional observations were also evaluated. In addition, the preliminary analysis does indicate that the conventional observations may solid the GPS network in case of the noised GPS measurements appeared. |
本系統中英文摘要資訊取自各篇刊載內容。