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.
高建东, 雷郁文. 利用后差分技术提高手持GPS的定位精度[J]. 物探与化探, 2006, 30(5): 446-449.
GAO Jian-dong, LEI Yu-wen. THE APPLICATION OF THE POST-OPERATION DIFFERENCE TECHNIQUE TO IMPROVE THE LOCATING PRECISION OF THE HAND-HELD GPS. Geophysical and Geochemical Exploration, 2006, 30(5): 446-449.