丹海高速公路平面坐标系的选择  

A selection of plane coordinates system for Danhai expressway

作　　者：裴书琦 陈乃桥 

机构地区：[1]辽宁省第三测绘院,辽宁沈阳110034 [2]吉林省地矿测绘院,吉林长春130062

出　　处：《吉林地质》2006年第2期74-79,共6页Jilin Geology

摘　　要：对地处山岭、重丘、平原区域的公路勘测线路,进行了具体分析,提出若建立多个抵偿高程投影面坐标系,虽不完全适合GPS控制网的整体平差计算,但可建立公路地固平面坐标系,以解决投影长度变形问题,从而满足公路勘测的实际需要。The expressway reconnaissance that will pass mountain ridges, superimposed hills and plain is analyzed. It is possible that if build some modified elevation projection coordinates, through that is incomplete suitable for calculating the whole revised error of the GPS controlling net, can set up ground- fixed plane coordinates system for expressway to solve projection length deformation, and meet the actual demands for the express way reconnaissance.

关 键 词：投影长度变形 GPS测量 抵偿坐标系 地固坐标系 

分 类 号：P623[天文地球—地质矿产勘探]