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。
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.
出处
《工程勘察》
CSCD
北大核心
2009年第10期50-52,70,共4页
Geotechnical Investigation & Surveying
基金
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(2009B06)
关键词
多路径
星载GPS
载波相位测量
Multi-path
on-board GPS data
carrier phase surveying
