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題 名 | 應用e-GPS於汽車導航之精度驗證=Precision Verification on Car Navigation using e-GPS Technology |
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作 者 | 葉大綱; 游福裕; 陳春盛; 張裕忠; | 書刊名 | 清雲學報 |
卷 期 | 30:2 2010.04[民99.04] |
頁 次 | 頁55-70 |
分類號 | 440.98 |
關鍵詞 | 全球定位系統; 汽車導航; 精度驗證; 網路; GPS; Car navigation; Precision verification; Network; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究乃針對靜態測量、動態測量,從外業規劃、資料處理到成果分析,藉 由Garmin vista 及Leica ATX1230 兩部儀器共同協測作業。測試方法:靜態測量 將兩台儀器所測得之座標資料做內部精度分析比較和Trimble 5700 測得標準座標 系統做外部精度分析比較,而動態測量將儀器裝載於汽車上,做一般道路測試及 快速道路測試,所測得之定位座標資料做內部精度分析比較,根據靜態測量與動 態測量精度來分析結果。根據研究成果中顯示,其定位精度無論是靜態測量或動 態測量,以Leica ATX1230 儀器較優,在動態測量精度顯示,以e-GPS 方法其定 位精度平面47 cm、高程116 cm 的精度優於DGPS 方法其平面66 cm,高程194 cm 及GPS 單點定位方法其平面150 cm,高程192 cm 的精度。雖然使用e-GPS 及 DGPS 方法均能有效改善定位精度,但必須克服大誤差情形,才能應用於汽車導 航上。 |
英文摘要 | The current study emphasizes on applying both static and dynamic methods in outdoor planning and surveying for data collection, processing and analysis assessment. The study is accomplished by using both Garmin vista and Leica ATX1230 instruments operating synchronically and simultaneously. The precision analysis includes two aspects: Firstly, apply static method in analysing the measured coordinates by both instruments and implement the internal precision statistical analysis, and also compare externally with the Trimble 5700 measured coordinates. Secondly, perform general road tests and highway tests using dynamical method by loading instruments in car. The collected positioning data coordinates are then used for similar precision statistical analysis. Through the comparison of both analysis results, we can then evaluate the positioning precision. According to the analysis results, it is shown that Leica ATX1230 performs better in positioning precision regardless of the different measuring methods. The analysis results using dynamical measuring method shows that the e-GPS positioning outperforms others with the horizontal precision 47 cm and the elevation precision 116 cm. In comparison, the horizontal precision/elevation precision of the respective DGPS and GPS single point positioning are 66 cm / 194 cm and 150 cm / 192 cm. Even though the use of either e-GPS or DGPS is able to improve the precision in positioning, the existing possibility in obtaining large error still needs to be overcome before it can really be employed in the car navigation. |
本系統中英文摘要資訊取自各篇刊載內容。