Click on “Download PDF” for the PDF version or on the title for the HTML version.
If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.
Evaluating the Dynamic Accuracy of Low-Cost GPS Receivers
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 031014, 2003 ASAE Annual Meeting . (doi: 10.13031/2013.15019) @2003
Authors: M. Reza Ehsani, Matthew D. Sullivan, Tommy L. Zimmerman, Timothy Stombaugh
Keywords: Yield data, Elevation data, Vertical accuracy, Precision agriculture, RTK GPS
This study introduces a method of dynamic accuracy testing for DGPS receivers and compares the dynamic accuracy of five commonly used low-cost DGPS receivers. The dynamic accuracy of five low-cost DGPS receivers (Garmin 16S, Garmin 76, Haicom HI-302, Navman 3420, Holux GM-210) were evaluated and compared while driving on a straight path under field conditions. All systems used WAAS as a source of differential signal. Cross-track error was calculated from the differences in actual position measured by a RTK GPS and position data from each DGPS receiver. Tests were conducted in N-S and E-W directions. The results indicated that the proposed method was successful in comparing the dynamic accuracy of different DGPS receivers under field conditions. The overall cross-track error was higher in the N-S direction than E-W direction for all DGPS receivers in all tests. Overall the Holux GM-210 performed the best in this study. This result is also in agreement with the static accuracy reported by each manufacturer.(Download PDF) (Export to EndNotes)