利用伪无基准方法进行区域网的GPS精密定位

GPS PRECISION POSITIONING IN A REGIONAL NET USING PSEUDO-NONFIDUCIAL METHOD

把全球网的无基准算法稍加修改后用于区域网定位中 ,称之曰伪无基准算法。并把它和区域网定位的有基准算法进行了比较 ,指出这两种算法各自的特点和适用范围。伪无基准算法不仅可避免有基准算法使网形被扭曲的缺点 ,而且变换基准站的选取、增减也相当的灵活方便 ,值得推广应用。

The pseudo-nonfiducial positioning method is applied to a regional GPS net., and compared with conventional fiducial method. The conclusions are that there are respective characteristics and application area for both of methods. The pseudo-nonfiducial method can aviod the problem of net shape twisting which is difficult to be overcome in the fiducial method, and the choice and changing of the transformation fiducial site as well as increasing or decreasing the number of transformation fiducial site are all very convenient and nimble. It is valuable to spread the pseudo-nonfiducial method.