大地测量与地球动力学2012，Vol.32Issue(5)：72-77,6.
网络RTK长基线模糊度解算方法研究
RESEARCH ON LONG BASELINE AMBIGUITY RESOLUTION OF NETWORK RTK
摘要
Abstract
With the distance between reference stations longer and longer, the atmospheric error related to spatial distance will be significantly reduced and can not be separated from ambiguity, so that the ambiguity is difficult to be fixed accurately. In view of this, an ambiguity resolution method suitable for long baseline is advanced based on partial ambiguity and Kalman filter. Firstly, the ambiguity of the satellites with higher elevation are resolved by two-steps and partial ambiguity methods. Secondly, the zenith atmospheric delay errors of reference stations are estimated by Kalman filter. Finally, the ambiguity of satellite with lower elevation between long baseline refeience stations is corrected by the zenith atmospheric dalay errors estimated for the accurate resolution. At the last, the method is verified by the observations of part referece stations in Jiangsu CORS, the results show that the double difference ambiguity is accurate and reliable for the satellites with lower elevation between long baseline reference stations.关键词
模糊度/Kalman滤波/网络RTK/长基线/大气延迟误差Key words
ambiguity/ Kalman filter/ network RTK/long baseline/atmospheric delay error分类
天文与地球科学引用本文复制引用
柯福阳,王庆,潘树国..网络RTK长基线模糊度解算方法研究[J].大地测量与地球动力学,2012,32(5):72-77,6.基金项目
"十一五"国家科技支撑计划重点项目资助(2008BAJ11B05) （2008BAJ11B05）
南京信息工程大学科研基金(20100416) （20100416）
