一种快速准确校正手持式GPS的方法  

A Method for Correcting Hand-held GPS Fastly and Accuratly

作　　者：蔡力挺 殷国鹏 王颖[2] 李少刚[2] 

机构地区：[1]山东省第三地质矿产勘查院,山东烟台264000 [2]烟台市国土资源局,山东烟台264003

出　　处：《山东国土资源》2013年第1期39-41,共3页Shandong Land and Resources

摘　　要：目前,手持式GPS已成为地质工作人员必不可少的工具之一,正确使用和校正GPS是每个技术人员必须掌握的。在工作实践中,笔者总结出GPS的显示坐标X,Y变化量与校正参数DX,DY,DZ的变化量的比值(即变化率)在某一地区是一定值(即线性关系),不同地区该定值不同。通过变化量的此种线性关系用解方程法可快速准确地确定DX,DY,DZ参数,且只要满足该方程解的不同组合的DX,DY,DZ均可作为该地区正确的校正参数,从而可准确校正GPS。At present, hand- held GPS has become one of the essential tools for geological staffs. Thus, proper use and correction of GPS should be mastered. On the basis of summarizing practices in many years, it is concluded that the ratio of display coordinate X, Y of GPS and the change amount of tuning pa- rameters of DX, DY and DZ is a certain value in a given region （that is a linear relationship）. This certain value is different in different regions. Through variation of this linear relationship, by using the method of solving equations, parameters of DX, DY, DZ can be determined quickly and accurately. If it can satisfy the equation with different combinations of DX, DY, DZ, it can be regarded as the correct calibration pa- rameters. Thus, GPS can be corrected accuratly.

关 键 词：手持式GPS 定位精度 DX DY DZ 变化率 线性关系 解方程法 

分 类 号：P208[天文地球—地图制图学与地理信息工程]