查詢結果分析
相關文獻
- 網形改正GNSS相對天頂向對流層延遲
- 利用全球定位系統載波相位之單軸姿態判定
- 資料處理對於稻穀食味主要成分之近紅外線校正線之影響
- 利用GNSS系統於網形平差分析及壩堤變形監測之研究
- Detection of Road Roughness by Using Post-Processed Kinematic GNSS
- The Verification Mode of Positioning Errors for Attacking Trajectory of the Aggressor
- GPS/Galileo單頻即時動態定位效能分析
- 模擬結合多個衛星系統導航定位之研究
- The Accuracy and Reliability Analysis for Future GNSS in Taiwan Region
- 應用於全球定位系統之接收機架構介紹
頁籤選單縮合
| 題 名 | 網形改正GNSS相對天頂向對流層延遲=GNSS Relative Tropospheric Zenith Delay Correction Based on the Network |
|---|---|
| 作 者 | 陳揚仁; 吳究; 謝昀錐; | 書刊名 | 航測及遙測學刊 |
| 卷 期 | 15:4 2010.12[民99.12] |
| 頁 次 | 頁317-324 |
| 分類號 | 440.98 |
| 關鍵詞 | 全球導航衛星系統; 二次差分; 對流層天頂向延遲; Satellite altimetry; Waveform retracking; Tide gauge; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 摘 要 全球導航衛星系統 (GNSS)在現代已經進入高效能的實際運作階段,然而在GNSS 相對定位過程中, 有許多誤差會對定位精度造成影響。對於相對定位基線上兩接收儀的觀測量而言,有許多的誤差量是相 近似的,如接收器時鐘誤差、衛星時鐘誤差、衛星軌道誤差等;若是長度十公里以內的短基線,兩接收 儀所受到之電離層與對流層延遲亦可視為相似的;故可利用二次差分的技術消除共同性的誤差。但是隨 著基線長度的增加,兩站之間的電離層與對流層延遲的差異性會漸漸的增加,通常前者可藉由無電離層 線性組合消除,後者必須依靠各式模型估計。本研究利用多個參考站,計算求解得各參考站與主參考站 之間的相對對流層天頂向延遲,並利用內插技術得到此區域內相對於主參考站之天頂向延遲模型,以期 能夠得到更加精確的定位結果。 |
| 英文摘要 | ABSTRACT The global navigation satellite systems have been applicable. But in the process of positioning, there are many errors which affect the accuracy of positioning. In a relative position case, many errors of two receivers are similar such as receiver clock, satellite clock and satellite orbit biases. The ionosphere and troposphere delays are also similar if the length of base line is short. Therefore they can be eliminated by a double difference technique.But the longer the baseline is, the more different the ionosphere and troposphere delays will be. The former could be eliminate by linear combination. The latter must estimated by models.This research included several reference stations and determined the relative tropospheric zenith delays between the master and subsidiary reference stations. Then the relative tropospheric zenith delay between the rover station and master reference station was estimated by an interpolation technique. The accuracy of positioning would be improved through the interpolated estimation. |
本系統中英文摘要資訊取自各篇刊載內容。