Gps's Position Of A Site

2015 WordsApr 10, 20169 Pages
GPS is an important measure used in field surveys to accurately determine the position of a site. In this case, it was used to map the Capel Dewi MST mast array. At each mast on the border of the array, a measurement was taken in order to obtain a grid reference. The reference point was set up and coordinated accurately, and post processed accordingly. The data was then collected around the array and was repeated with three different rovers to measure precision and view the effects of using a different satellite system; the first two were ******** receivers and the third was a GLONASS receiver. The third rover was unable to obtain data on one side of the field as bushes were blocking the satellite signal. Data was spliced into the original data set to make up the shortfall. The precision of the data varies across the field, generally with a higher precision closer to the reference point. This is caused by points further away from the reference points going through the same post processing as the reference point, and as its true position is further from the reference point, the post processing is less accurate. However, there is some degree of variation from point to point depending on the position of the rover as the measurement was taken. Introduction This report outlines a global positioning satellite (GPS) study of the Capel Dewi MST mast array near Aberystwyth, Wales. Three separate monitoring stations were used to obtain this data and there position referenced
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