| 基于海面环境多路径效应建模初探 |
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| 引用本文： | 刘永义,党亚民,薛树强.基于海面环境多路径效应建模初探[J].测绘科学,2013,38(1):122-124. |
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| 作者姓名： | 刘永义 党亚民 薛树强 |
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| 作者单位： | 1. 中国测绘科学研究院大地所,北京100830;山东科技大学测绘科学与工程学院,山东青岛266510
2. 中国测绘科学研究院大地所,北京,100830 |
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| 基金项目： | 中国卫星导航年会青年优秀论文获奖者资助课题资助(CSNC2010-QY-005);国家高新技术发展计划(2009AA121401) |
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| 摘 要： | 在海洋测绘中,GNSS定位精度不可避免地要受到多路径效应的影响。本文遵循多路径效应建模的一般原则,对海面环境多路径效应建模进行了初步探讨,模拟了平静湖面和动态海面环境下多路径效应产生的过程,根据各参数的几何关系推导出了多路径效应产生的位置以及信号延迟距离。并通过模拟数据对海面动态环境下多路径效应产生的位置进行了计算,以验证所推公式的有效性。
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| 关 键 词： | GNSS定位 海面 多路径效应 动态环境 建模 |
Preliminary discussion of multipath effect model on sea surface |
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| LIU Yong-yi,DANG Ya-min,XUE Shu-qiang.Preliminary discussion of multipath effect model on sea surface[J].Science of Surveying and Mapping,2013,38(1):122-124. |
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| Authors: | LIU Yong-yi DANG Ya-min XUE Shu-qiang |
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| Institution: | ①(①Institute of Geodesy and Geodynamics,Chinese Academy of Surveying and Mapping,Beijing 100830,China;②Geomatics College,Shandong University of Science and Technology,Shandong Qingdao 266510,China) |
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| Abstract: | In the ocean of surveying and mapping,GNSS positioning accuracy is influenced by multipath effect inevitably.Following the general principles of multipath effect model,sea surface environment based multipath effect model was preliminarily discussed in this paper.The process of static environment on lake surface and dynamic environment on sea surface were simulated.Based on each parameter's geometric relationship,the position of multipath effect and the distance of signal delay were deduced.Then the multipath effect locations were calculated through the simulation data to verify the effectiveness of the formulas. |
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| Keywords: | GNSS positioning sea surface multipath effect dynamic environment model |
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