| 星载GPS载波相位测量中多路径效应影响 |
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| 引用本文： | 郭淑艳,;郭金运,;孙佳龙.星载GPS载波相位测量中多路径效应影响[J].工程勘察,2009(10):50-52. |
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| 作者姓名： | 郭淑艳 ;郭金运 ;孙佳龙 |
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| 作者单位： | [1]淮海工学院测绘工程学院,江苏连云港222005; [2]山东科技大学测绘科学与工程学院,山东青岛266510; [3]海岛礁测绘技术国家测绘局重点实验室,山东青岛266510 |
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| 基金项目： | 国家自然科学基金（40774009）;山东省泰山学者建设工程专项（TSXZ0502）;对地观测技术国家测绘局重点实验室（200801）;地理空间信息工程国家测绘局重点实验室基金（B2808）;海岛（礁）测绘技术国家测绘局重点实验室基金（2009806）. |
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| 摘 要： | 在星载GPS载波相位测量中,多路径效应的改正对最后的定位定轨精度起着至关重要的作用。星载GPS载波相位测量具有观测时间短、环境变化复杂、所得历元少和基本不受对流层延迟影响的特点,本文通过多路径效应在静态GPS测量中和星载GPS载波相位测量中的比较,分析了多路径效应对星载高动态环境GPS载波相位测量的影响。在星载GPS数据处理时如果能剔除前后20个历元,那么对定位的精度会有很大的提高。
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| 关 键 词： | 多路径 星载GPS 载波相位测量 |
Multi-path effects in GPS carrier phase surveying onboard satellite |
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| Affiliation: | Guo Shuyan, Guo Jinyun , Sun Jialong ( 1. College of Mapping Engineering, Huaihai Institute of Technology, Lianyungang 222005, China ; 2. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266510, China ; 3. Key Laboratory of Surveying and Mapping on Island and Reef, SBSM , Qingdao 266510, China ) |
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| Abstract: | In the on-board cartier phase GPS surveying, the rectification of Multi-path effect plays very important role on the final orientation precision and precise orbit determination. The data obtained from on-board GPS surveying has the features as follows： short observation time; complex surroundings; a few epochs and delayed in the troposphere. This paper, through comparisons between the multi-path effect on the static GPS surveying and on-board carrier phase GPS surveying, analyzes the multi-path effect on the on-board cartier phase GPS surveying. The result indicates that the data precision is good if 20 epochs are eliminated from the GPS data. |
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| Keywords: | Multi-path on-board GPS data carrier phase surveying |
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