Abstract
The Differential GPS is well known as the effective system for positioning acquisition. We have studied about a simplified Differential GPS using two GPS receivers. In this paper, we apply pattem matching method to the dispersion data pattem and discuss the positioning accuracy. It is cleared that about 50cm positioning accuracy is obtained by after processing of dispersion data pattem. Presented method is not a real-time positioning, but available for high accurate positioning with GPS receiver which are on the market and easy to obtain.
