APPLICATION OF GPS TO JIAONAN CITY GIS ENGINEERING
Debao Wang · Wtusm Bulletin of Science and Technology · 2004
This paper introduces the ways to promote the horizontal precision and elevation simulating and conforming precision in Jiaonan city GIS engineering. When the elevation simulating and conforming is being carried out, the precision checking for known GPS level point data will be finished in several simulating and conforming plans, and the precision checking for simulating and conforming elevation of unknown points will be implemented.