| 基于时变AR模型的GPS定位精度研究 |
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| 引用本文： | 连远锋,王智广,赵剡. 基于时变AR模型的GPS定位精度研究[J]. 内蒙古师范大学学报(自然科学版), 2010, 39(4): 377-381 |
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| 作者姓名： | 连远锋 王智广 赵剡 |
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| 作者单位： | 中国石油大学（北京）计算机科学与技术系;北京航空航天大学仪器科学与光电工程学院; |
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| 基金项目： | 航空科学基金资助项目(20080818007) |
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| 摘 要： | 定位精度是影响GPS卫星导航系统应用的重要因素之一.对时变参数模型TVAR进行了研究,并将其应用于GPS卫星导航系统的定位精度分析,以达到减小定位误差的目的.该方法针对定位序列的统计特性,利用时间序列分析方法建立预测模型,通过前面一段数据拟合的模型预测后面一段时间的数据趋势.数据实验结果验证了利用时变自回归方法进行GPS数据建模分析的有效性和可行性.
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| 关 键 词： | 时变自回归 时间序列 GPS 预测模型 |
Accuracy of GPS Positioning Based on Time-varying Auto Regressive Model |
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| LIAN Yuan-feng,WANG Zhi-guang,ZHAO Yan. Accuracy of GPS Positioning Based on Time-varying Auto Regressive Model[J]. Journal of Inner Mongolia Normal University(Natural Science Edition), 2010, 39(4): 377-381 |
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| Authors: | LIAN Yuan-feng WANG Zhi-guang ZHAO Yan |
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| Affiliation: | 1.Department of Computer Science and Technology/a>;China University of Petroleum/a>;Beijing 102249/a>;China/a>;2.School of Instrument Science and Opto-electronics Engineering/a>;Beijing University of Aeronautics and Astronautics/a>;Beijing 100191/a>;China |
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| Abstract: | The accuracy of positioning is one of the most important factors that will affect the application of the Global Positioning System.In this paper,an approach of time-varying auto regressive model was given to reduce the error of positioning.The positioning data gathered from GPS was analyzed,and the prediction model was modeled using statistical positioning data series.For fitting model with the prior data,the data trend of positioning results is predicted.Experimental results show that the proposed approach... |
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| Keywords: | time-varying auto-regression time series GPS prediction model |
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