摘要
研究了整流罩(radom)对天线相位中心的影响与高度角的耦合关系,比较了相同整流罩在不同截止高度角下对相对定位和PPP的影响,分析了相同截止高度角情况下不同整流罩对相对定位和PPP的影响。结果表明,在一个5°天线相位中心变化区间,整流罩对天线相位中心的影响与高度角成正耦合关系;相同整流罩在不同截止高度角下对定位的影响差别不大;相同截止高度角下不同整流罩在相对定位解算的高程方向最大可引起6mm的偏差,而在PPP解算的高程方向最大可引起13mm的偏差。
The coupled relation between the influence of the radom to the antenna phase center and the elevation angles is studied in this paper.The influence of the same radom to therelative positioning and precision point positioning（PPP）at different elevation angles andthat the different radom to the relative positioning and PPP at the same elevation angle arecompared and analyzed.Results show,when the variation of the antenna phase center is 5°,the influence of the radom to the antenna phase center has a positive coupled relation to theelevation angle.There is little difference between the influences of the same radom to the positioning at different elevation angles.However,in case of the same elevation angle,the influences of different radom to the relative positioning and PPP results can reach up to 6mmand 13mm respectively in the elevation direction.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2013年第5期566-570,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41174008)
国家教育部高等学校全国优秀博士学位论文作者专项资助项目(2007B51)
关键词
整流罩
绝对天线相位中心模型
截止高度角
相对定位
精密单点定位
radom
absolute antenna phase center
cut-off elevation angle
relative positioning
precision point positioning
