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題 名 | 動態衛星測量整數模稜約制法之研究=Constraints on Integer Ambiguities Used in Kinematic Satellite Surveying |
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作 者 | 吳究; 林修國; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 10:3 1998.09[民87.09] |
頁 次 | 頁549-556 |
分類號 | 440.98 |
關鍵詞 | 動態測量; 模稜約制; 寬巷信號; Kinematic surveying; Ambiguity constraints; Wide-lane signals; |
語 文 | 中文(Chinese) |
中文摘要 | 動態衛星測量的訴求之一是以單一時刻載波相位觀測量, 即達到空間定位之目 的。理論上,必須藉單一時刻量測數據完成整數相位模稜之求定。為確保模稜求定的正確性 ,由估計的模稜參數及其形式誤差出發,於信心區間內檢查,是否待試誤的模稜整數候選點 能通過多重統計約制。為增進演算效益,區別出主要與次要衛星,且充分利用寬巷線性組合 信號與原載波相位間之模稜轉換關係。經評估新的整數模稜約制法之成功率、重複性和動態 定位可行性後,選擇一衛星高程測量案,實際驗證本法的成效:用於 5 × 6 ㎞�砲酋Z實驗 區的 25 個檢核點時,動態衛星測量科技能獲得± 1.3 ㎝高程精度。 |
英文摘要 | One of the requirements for kinematic satellite surveying is three- dimensional positioning by using single-epoch carrier phase observales. Theoretically, integer phase ambiguities must be resolved when processing single-epoch measurement data. For the sake of correct ambiguity resolution, estimated ambiguity parameters and their formal errors are checked if linearly- combined candidate integer ambiguities may fall within multiple confidence intervals on a trial-and-error basis. To increase computational efficiency, the proposed method distinguishes the primary from the secondary satellite, and exploits integer transformation of the wide-lane ambiguities to the ambiguities of the original carrier waves. After evaluating the method of condstraints on integer ambiguities with respect to its success rate, repeatability and kinematic positioning feasibility, the method is applied to satellite leveling and experimentally verified. For 25 check points in a 6km �� 5km flat test area, the kinematic satellite surveying technology can yield a height accuracy of ± 1.3 ㎝。 |
本系統中英文摘要資訊取自各篇刊載內容。