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引用本文:杨哲,戴吾蛟,余文坤,廖建平. ��ͬ�۲⻷���л���TEQC��GNSS������������[J]. 大地测量与地球动力学, 2010, 30(5): 135-139
作者姓名:杨哲  戴吾蛟  余文坤  廖建平
作者单位:1. 中南大学测绘与国土信息工程系,长沙,410083
2. 中南大学测绘与国土信息工程系,长沙,410083;湖南省精密工程测量与形变灾害监测重点实验室,长沙,410083
基金项目:国家自然科学基金,湖南省科技重大专项,中南大学创新实验基金
摘    要:??????????·??Ч????????????????????GNSS???????????TEQC?????7??????????????????????????????????????????1???????????????????GNSS?????????????????????·??Ч??????????????????2????????????????????????????GNSS??????????????????????γ??????GNSS??????????С??3?????????????????Ч????λ??????????????????????,??????????????????????????????????

关 键 词:?????  ????????  GNSS  ??·??Ч?  TEQC???  

QUALITY ANALYSIS OF GNSS DATA BASED ON TEQC IN DIFFERENT ENVIRONMENTS
Yang Zhe,Dai Wujiao,Yu Wenkun,Liao Jianping. QUALITY ANALYSIS OF GNSS DATA BASED ON TEQC IN DIFFERENT ENVIRONMENTS[J]. Journal of Geodesy and Geodynamics, 2010, 30(5): 135-139
Authors:Yang Zhe  Dai Wujiao  Yu Wenkun  Liao Jianping
Affiliation:1)Department of Surveying Engineering &; Geo- Informatics, Central South University, Changsha 4100832)Key Lab. Of Precise Engineering Surveying &; Deformation Disaster Monitoring of Hunan Province, Changsha 410083
Abstract:Multipath, signal diffraction and electromagnetic signal interference are the main factors to decrease the quality of GNSS data. All of these factors are related to the environment of the station. To know more about the relationship between the environment and data, the GNSS data collected from 7 stations in different environments are analyzed by using TEQC software and baseline solutions. The results show the following problems.1) Cycle slip, signal diffraction and multipath effect are the most serious when the GNSS antenna under trees.2) There is a certainextent of electromagnetic signal interference near wireless communication base station and radar station, but less under high voltage transmission line.3) Modern geodetic antenna is immune to the reflected signal when the antenna is above the water surface, but power less to the reflected signal from the glass curtain wall.
Keywords:observation environment  data quality  GNSS(Global Navigation Satellite System)  multipath effect  TEQC (Translate  Edit  Quality Check)
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