Method for GPS Coordinates of the Network Known Point Difference and the Ratio of Gross Error Detection
Yutang Zhang · Geospatial Information · 2010
In the GPS adjustment with conditions,the ground-known point of gross error or error led to the GPS network Deformation,the results brought about distortion by adjustment.When the adjustment can not be the reliability of test results,it appeared very important to determine hoe to contain gross errors point and estimate the size of gross error.On the base of demonstrating the consistency of difference between WGS-84 geocentric coordinate system and the State Plane Coordinate system difference (such as Beijing 54 coordinate) or the local plane coordinates system,the point of gross error was determined by analyzing the difference between the two kinds of coordinates system of corresponding points and their ratio.