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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王立昇 | |
| dc.contributor.author | Chia-Wei Sung | en |
| dc.contributor.author | 宋家瑋 | zh_TW |
| dc.date.accessioned | 2021-06-08T02:28:47Z | - |
| dc.date.copyright | 2015-08-19 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2015-08-16 | |
| dc.identifier.citation | [1] Amiri-Simkooei, A. (2007). Least-squares variance component estimation: theory and GPS applications. TU Delft, Delft University of Technology.
[2] Beran, T. (2008). Single-frequency, single-receiver terrestrial and spaceborne point positioning. University of New Brunswick, Department of Geodesy and Geomatics Engineering. [3] Bahrami, M., & Ziebart, M. (2010, May). Instantaneous Doppler-aided RTK positioning with single frequency receivers. In Position Location and Navigation Symposium (PLANS), 2010 IEEE/ION (pp. 70-78). IEEE. [4] Chen, K. (2005). Real-time precise point positioning, timing and atmospheric sensing. [5] Cai, C., Pan, L., & Gao, Y. (2014). A Precise Weighting Approach with Application to Combined L1/B1 GPS/BeiDou Positioning. Journal of Navigation, 67(05), 911-925. [6] CSNO(2013) BeiDou Navigation Satellite System Open Service Performance Standard (Version 1.0), China Satellite Navigation Office, Beijing, China [7] CSNO(2013) BeiDou Navigation Satellite System Signal In Space Interface Control Document Open Service Signal (Version 2.0), China Satellite Navigation Office, Beijing, China [8] Hofmann-Wellenhof, B., Lichtenegger, H., & Wasle, E. (2007). GNSS–global navigation satellite systems: GPS, GLONASS, Galileo, and more. Springer Science & Business Media. [9] Kouba, J. (2009). A guide to using International GNSS Service (IGS) products. [10] Li, B., Shen, Y., & Lou, L. (2011). Efficient estimation of variance and covariance components: A case study for GPS stochastic model evaluation. Geoscience and Remote Sensing, IEEE Transactions on, 49(1), 203-210.R. C. Gonzalez, R. E. Woods, Digital Image Processing second edition, Prentice Hall, 2002 [11] Leandro, R., Santos, M. C., & Langley, R. B. (2006, January). UNB neutral atmosphere models: development and performance. In Proceedings of ION NTM (Vol. 52, No. 1, pp. 564-73). [12] Li, M., Qu, L., Zhao, Q., Guo, J., Su, X., & Li, X. (2014). Precise point positioning with the BeiDou navigation satellite system. Sensors, 14(1), 927-943. [13] Li, J., & Wu, M. (2009, September). The improvement of positioning accuracy with weighted least square based on SNR. In Wireless Communications, Networking and Mobile Computing, 2009. WiCom'09. 5th International Conference on (pp. 1-4). IEEE. [14] Niell, A. E. (1996). Global mapping functions for the atmosphere delay at radio wavelengths. Journal of Geophysical Research: Solid Earth (1978–2012), 101(B2), 3227-3246. [15] Tay, S., & Marais, J. (2013, January). Weighting models for GPS Pseudorange observations for land transportation in urban canyons. In 6th European Workshop on GNSS Signals and Signal Processing (p. 4p). [16] Teunissen, P. J. G., & Amiri-Simkooei, A. R. (2008). Least-squares variance component estimation. Journal of Geodesy, 82(2), 65-82. [17] Weixiao, M., Enxiao, L., Shuai, H., & Qiyue, Y. U. (2012). Research and development on satellite positioning and navigation in China. IEICE transactions on communications, 95(11), 3385-3392. [18] Wienia, R. J. (2008). Use of global ionospheric maps for precise point positioning: developing an optimised procedure in using Global Ionospheric Maps for single-frequency standalone positioning with GPS (Doctoral dissertation, TU Delft, Delft University of Technology). [19] Ya’acob, N., Abdullah, M., & Ismail, M. (2008). Determination of GPS total electron content using single layer model (SLM) ionospheric mapping function. IJCSNS, 8(9), 154. [20] Yang, Y., Li, J., Xu, J., Tang, J., Guo, H., & He, H. (2011). Contribution of the compass satellite navigation system to global PNT users. Chinese Science Bulletin, 56(26), 2813-2819. [21] Yu, W., Dai, W., Ding, X., Yang, W., & Gao, X. (2012, January). Stochastic Model of GPS/BD Combined Standard Single Point Positioning. In China Satellite Navigation Conference (CSNC) 2012 Proceedings (pp. 325-334). Springer Berlin Heidelberg. [22] Zumberge, J. F., Heflin, M. B., Jefferson, D. C., Watkins, M. M., & Webb, F. H. (1997). Precise point positioning for the efficient and robust analysis of GPS data from large networks. Journal of Geophysical Research: Solid Earth (1978–2012), 102(B3), 5005-5017. [23] 王舜緯. (2014). 衛星導航系統即時精確定位法研究. 臺灣大學應用力學研究所學位論文, 1-61. [24] 莊智清. (2012). 衛星導航. 全華圖書。 [25] 楊開元. (2014). GPS/BDS 衛星導航之方法與效能. 成功大學測量及空間資訊學系學位論文, 1-130. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/19946 | - |
| dc.description.abstract | 本研究整合全球定位系統(Global Positioning System, GPS)及北斗衛星導航系統(Beidou Satellites Navigation System, BDS)進行雙星系單頻精密單點定位，並希望達到即時定位之目的。
定位誤差部分，使用UNB3m模型修正對流層誤差， 使用IGS提供的Ultra-Rapid精密星曆修正衛星軌道誤差與衛星時錶誤差，使用 IGS提供的全球電離層地圖修正電離層誤差，以及修正剩餘的微小誤差如地球固態潮汐(Solid Earth Tide)等。觀測量部分，使用了都普勒平滑偽距提升做為觀測量精度之方法，並與載波相位平滑偽距之定位結果比較。整合雙星系定位部分，使用了Helmert方差分量估計調整GPS與BDS的系統權重。 本研究比較了使用廣播星歷與使用精密星歷的定位結果，發現精密星曆在準度部分提昇，精度部分則與廣播星曆近乎相等。再測試都普勒平滑偽距與載波相位平滑偽距對於定位效果的提升，發現都普勒平滑偽距修正效果較好。最後比較GPS與BDS個別單星系定位與雙星系定位結果，在衛星觀測量穩定的情況下，雙星系定位平面精度部分由1.1∼1.4公尺下降至0.8公尺，高度部分則由1.4∼1.7公尺上升至1.9公尺，若單一衛星系統觀測量劇烈變動時，雙星系定位精度會受其影響，平面精度部分由1.3∼4.3公尺變為1.8公尺，高度部分則由2.0∼9.8公尺變為3.5公尺。 | zh_TW |
| dc.description.abstract | In this paper, we try to integrate the Global Positioning System (GPS) and Beidou Satellite Navigation System (BDS) single frequency precise point positioning, and achieve the purpose of real-time positioning.
For modification errors, we use UNB3m model for correcting tropospheric delay, the Ultra-Rapid ephemeris provided by International GNSS Service (IGS) for correcting satellite orbit errors and satellite clock errors, the Global Ionosphere Map provided by IGS for correcting ionospheric errors, and we correct the small errors such as Earth Solid Tide, phase wind up and so on. For satellite observations, we use Doppler-smoothing of code pseudoranges to enhance the accuracy and precision of positioning, and compare the results of Doppler-smoothing of code pseudoranges with the results of carrier-smoothing of code pseudoranges. For integrating double satellite system, we use the Helmert variance component estimation to adjust the weightings of GPS and BDS. First, we compare the broadcast ephemeris with the precise ephemeris. The results indicate the precise ephemeris enhance the accuracy of positioning, but the positioning precision of the precise ephemeris is almost equal to the precision of positioning of broadcast ephemeris. Then, we compare Doppler-smoothing of code pseudoranges with carrier-smoothing of code pseudoranges. The results indicate Doppler smoothing pseudorange is better than carrier-smoothing of code pseudoranges. Lastly, we compare positioning results of individual single satellite system with positioning results of double satellite system. If the satellite observations are stable, the precision of positioning of the double satellite system would be better. The result indicates the horizontal precision of positioning changes from 1.1~1.4 meters to 0.8 meters, and the vertical precision of positioning changes from 1.4~1.7 meters to 1.9 meters. On the contrary, if the single satellite system observations changes drastically, the precision of positioning of the double satellite system would be worse. The result shows the horizontal precision of positioning changes from 1.3~4.3 meters to 1.8 meters, the vertical precision of positioning changes from 2.0~ 9.8 meters to 3.5 meters. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T02:28:47Z (GMT). No. of bitstreams: 1 ntu-104-R02543070-1.pdf: 3279315 bytes, checksum: e16939647d5c154f52b6d818d83c3632 (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | 誌謝 i
中文摘要 ii Abstract iii 目錄 iv 圖目錄 vi 表目錄 viii 第 一 章 緒論 1 1.1 動機 1 1.2 文獻回顧 1 1.3 研究內容摘要 2 1.4 論文架構 2 第 二 章 全球衛星導航系統 3 2.1 GPS衛星系統 3 2.1.1 太空部門 3 2.1.2 地面監控部門 4 2.1.3 用戶接收部門 4 2.1.4 GPS座標系統 4 2.1.5 GPS時間系統 5 2.2 北斗衛星系統 6 2.2.1 BDS發展歷程 6 2.2.2 BDS訊號系統 8 2.2.3 BDS座標系統 9 2.2.4 BDS時間系統 9 2.3 GNSS觀測量 10 2.3.1 虛擬距離觀測量 10 2.3.2 載波相位觀測量 11 2.3.3 單點定位原理 11 第 三 章 誤差分析 13 3.1 衛星相關誤差 13 3.1.1 衛星軌道誤差 13 3.1.2 衛星時錶誤差 14 3.1.3 GPS衛星天線相位中心修正 15 3.1.4 相對論影響 16 3.1.5 天線相位繞轉(Phase wind-up) 17 3.2 訊號傳遞誤差 18 3.2.1 電離層誤差 18 3.2.2 對流層誤差 21 3.2.3 地球自轉修正 26 3.2.4 多路徑效應 26 3.3 接收機相關誤差 27 3.3.1 接收機時錶誤差 27 3.3.2 接收機座標位移 27 3.4 GNSS雙星系統整合誤差 29 第 四 章 即時單頻精密單點定位演算法設計 30 4.1 載波相位平滑偽距與都普勒平滑偽距 30 4.2 加權最小平方法 32 4.3 Helmert方差分量估計 39 4.4 定位流程 41 第 五 章 實驗結果 42 5.1 靜態實驗一 42 5.2 靜態實驗二 51 第 六 章 討論與未來工作 61 REFERENCE 62 | |
| dc.language.iso | zh-TW | |
| dc.title | 整合GPS/BDS雙星系統之單頻精密單點定位研究 | zh_TW |
| dc.title | A study on the single frequency precise point positioning by integrating double satellite system GPS/BDS | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 103-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 張帆人 | |
| dc.contributor.oralexamcommittee | 王伯群,林君明,王和盛 | |
| dc.subject.keyword | GPS/BDS,北斗衛星定位系統,單頻,精密單點定位,都普勒,Helmert方差分量估計, | zh_TW |
| dc.subject.keyword | GPS/BDS,Beidou satellite navigation system,Single-frequency,Doppler,Precise point positioning,Helmert variance component estimation, | en |
| dc.relation.page | 64 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2015-08-17 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 應用力學研究所 | zh_TW |
| 顯示於系所單位： | 應用力學研究所 | |
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