摘要
详细讨论了广域差分GPS数据处理的数学模型和方法，就实际观测数据，用作者研制的软件确定差分修正信息并提供给用户站定位。结果表明，软件可以保证平面位置精度优于1m，高程精度在1．5m左右。
In this paper, the mathematical models and data processing methods for Wide Area Differential GPS (WADGPS) have been discussed in detail, The relevant softwares used for determining differential corrections of ephemeris, satellite elock errors and ionosphere delay and for positioning of WADGPS have been developed. By making use of these softwares and practical observation data, a engineering testing of WADGPS has been completed.The testing results have shown that the accuraeies can be better than±1. 0 m and±1. 5 m for horizontal and vertical postioning respectively.
出处
《测绘工程》
CSCD
1998年第1期1-5,共5页
Engineering of Surveying and Mapping
关键词
广域差分
GPS
差分修正信息
卫星钟差
数据处理
Wide Area Differential GPS (WADGPS)
Differential corrections
Satellite clock errors
Ionosphere delay
Ephemeris
