船舶测量自由移站法及多站转换参数的整体平差

Integrated Adjustment of the Coordinate Conversion Parameters on Ship Free-moving Measurement

运用自由移站测量方法,将所有转换参数进行整体平差。对转换参数进行了精度分析,将整体平差前后的所有转换参数的精度进行了对比分析。实例计算和理论分析表明,此方法可提高各站间转换参数的精度,减少因为移站而造成的繁琐工作量。经过整体平差后,平移参数的精度为毫米级,旋转参数的精度为1″,满足船舶制造过程中的精度要求。

In this paper, the free-moving measurement was used to make an integral adjustment to all transfer parame- ters,a precision analysis of which was made,and a comparative analysis of the precision of all transfer parameters before and after they were integrally adjusted was also made. Through programming calculation of an example and theoretical analysis,a conclusion is reached that this method can improve the precision of all the transfer parameters between stations obviously and reduce the tedious workload caused by moving stations. By way of the integral adjust- ment, the precision of horizontal moving parameters is millimeter, and the one of rotating parameters is second, which can meet the precision requirements in the process of ship manufacturing.