摘要
在总结现有的经纬度和QTM编码转换算法的基础上,提出了基于辅助地心坐标系的经纬度坐标与QTM编码的三向互化算法,算法以三向地理格网坐标系为出发点,从三个方向递归逼近QTM地址码。同时,提出了QTM编码精度的评价标准———转化误码率。实验证明,三向互化算法在保证速度和绝对精度的情况下,等积转换误码率为0。
Based on sumed up the current algorithm between long. /lat. coordination and QTM code, a new algorithm called three orientation translating algorithm based on assistant geocentric rectangular coordinate that is used to translating algorithm between long./ lat. coordination and QTM code is presented. At the same time, in order to compare with the differences among the algorithms, a new criterion judge of precision-invert error rate. The result indicated that three orientation translating algorithm not only has good rate and absolute accurary, but also the orthembadism invert error rate is 0.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2006年第1期27-30,共4页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2003AA783060-3)
关键词
QTM
三向互化算法
转化误码率
三向地理格网坐标
QTM
three orientation translating algorithm
invert error rate
three orientation geographic grid coordination
