| 单站地基GPS实时估计电波折射弯曲角 |
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| 引用本文： | 朱庆林,赵振维,林乐科,吴振森.单站地基GPS实时估计电波折射弯曲角[J].武汉大学学报(信息科学版),2012,37(6):671-674. |
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| 作者姓名： | 朱庆林 赵振维 林乐科 吴振森 |
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| 作者单位： | 1中国电波传播研究所电波环境特性及模化技术重点实验室,青岛市仙山东路36号266071;2宇航动力学国家重点实验室,西安市505信箱28号710043;3西安电子科技大学理学院,西安市太白南路2号710071 |
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| 基金项目： | 宇航动力学国家重点实验室开放基金资助项目，中国电科集团创新基金 |
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| 摘 要： | 提出了利用单站地基GPS多普勒频移实时估计弯曲角的方法,该方法克服了探空法和模型法的局限,可以全天候观测,适合于实时应用。实验结果显示,GPS结果与探空结果具有较好的一致性,且在低仰角范围内优于模型结果。
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| 关 键 词： | GPS 多普勒频移 弯曲角 探空 电波折射 |
| 收稿时间： | 2012-04-11 |
Real Time Estimation of Electromagnetic Wave Refraction Bending Angles with Singular Ground-Based GPS |
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| ZHU Qinglin,ZHAO Zhenwei,LIN Leke,WU Zhensen.Real Time Estimation of Electromagnetic Wave Refraction Bending Angles with Singular Ground-Based GPS[J].Geomatics and Information Science of Wuhan University,2012,37(6):671-674. |
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| Authors: | ZHU Qinglin ZHAO Zhenwei LIN Leke WU Zhensen |
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| Institution: | 1 National Key Laboratory of Electromagnetic Environment,China Research Institute of Radio Wave Propagation, 36 East Xianshan Road,Qingdao 266107,China;2 State Key Laboratory of Astronautic Dynasmics,28 P.O.Box 505,Xi'an 710043,China;3 School of Science,Xidian University,2 South Taibai Road,Xi'an 710071,China |
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| Abstract: | The traditional methods of calculating the bending angle are mainly radiosonde and model.Although the accuracy of bending angle calculation based on radiosonde is high,the radiosonde is unfit for real time application for its limitations such as inefficiency,high cost and great interval between adjacent observations.The model method is simple,but its accuracy is poor.The estimation of real time bending angles based on singular ground-based GPS is presented.The method can overcome radiosonde limitations and is fit for real time application.In order to validate the feasibility,an experiment of GPS and radiosonde is carried out on an island in Shantou,south China,and the observations of qingdao GPS station are disposed.Through results comparing between GPS and radiosonde,we find that the GPS results agree well with those of radiosonde,and are better than those of Hopfield model. |
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| Keywords: | GPS Doppler frequency shift bending angle radiosonde electric wave refrac- tion |
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