THE APPLICATION OF THE POST-OPERATION DIFFERENCE TECHNIQUE TO IMPROVE THE LOCATING PRECISION OF THE HAND-HELD GPS
Lei Yu-wen · Geophysical and Geochemical Exploration · 2006
The high-resolution position data in the centimeter grade are extracted from the binary output records of the hand-held GPS position indicator,and the multiple average measurement and post-operation position difference correction method are used so as to decrease the planar locating error of the portable and cheap hand-held GPS position indicator from several meters to 1 m or so.Thus the precision of the sub-meter grade can be attained.