Comparison of Dilution of Precision (DOP) in Multipath and Error free Environment using Single Frequency Global Positioning System
Shalem Raj Meduri1, P. S. Bramhanandam2
1Shalem Raj Meduri, Electronics and Communications, K L University.
2Dr. P. S. Brhmanandam, Electronics and Communications, K L University.
Manuscript received on May 17, 2012. | Revised Manuscript received on June 22, 2012. | Manuscript published on June 30, 2012. | PP: 445-448 | Volume-1 Issue-5, June 2012. | Retrieval Number: E0535061512/2012©BEIESP

Open Access | Ethics and Policies | Cite
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (

Abstract: Global Positioning System (GPS) is a satellite based radio navigation system intended to provide highly accurate three dimensional positions and precise time on a continuous global basis. Usually, GPS accuracy is limited by several factors such as atmospheric, receiver and satellite based errors. Among them, Dilution of Precision (DOP) and multipath errors are very important to investigate the error for improving positional accuracy. In this paper, single frequency receiver data analysis in static mode is carried out. Using the GPS data, Horizontal Dilution of Precision (HDOP) results were presented. The presented preliminary results would be useful for developing suitable techniques for improving single frequency GPS positional accuracy by taking the HDOP errors into the consideration. 
Keywords: GPS, NMEA and HDOP.