Abstract
The positioning error elements of GPS are described and the differential means are proposed. The mathematics models of pseudo-range position and pseudo-range differential position are also introduced. The relationship between the corrected user pseudo-range residue and SA signal is analyzed. Based on the temporal correlation of SA signal, a suitable transmitting cycle of correction is then acquired in the local differential method. The correction contains pseudo-range correction and pseudo-range rate correction, which are included in the RTCM SC-104 telegraphese 1. In final, the practical conclusion is provided via many pseudo-range differential position experiments in a fixed point and many different correction-transmitting cycles.
| Original language | English |
|---|---|
| Pages (from-to) | 633-635 |
| Number of pages | 3 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 26 |
| Issue number | 6 |
| State | Published - Dec 2000 |
Keywords
- Difference
- Navigation
- Positioning
- Time correlation
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