GPS for environmental applications: Accuracy and precision of locational data
Date of Original Version
In this study, we estimated the accuracy and precision of a simple GPS receiver and community base station system. We found that, under ideal conditions, 95 percent of the locations we derived were within 73 m of true without differential correction and within 6 m of true with correction. Taking the average of repetitive fixes at a single location increases accuracy and precision, especially if more than 50 sequential fixes are used. There is little correlation of positional accuracies obtained at different stations or between raw and differentially corrected data. There can be measurable day-to-day variation in accuracy that may not be related to PDOP (positional dilution of precision) conditions.
Publication Title, e.g., Journal
Photogrammetric Engineering and Remote Sensing
August, P., J. Michaud, C. Labash, and C. Smith. "GPS for environmental applications: Accuracy and precision of locational data." Photogrammetric Engineering and Remote Sensing 60, 1 (1994). https://digitalcommons.uri.edu/nrs_facpubs/327