误差四边形及其解算

为防止小次数观测中出现大误差的小概率事件,本文对点位误差分布进行了探讨,井论证了前方交会点位误差的分布范围为四边形,提出“误差四边形”一词。分析了在同等条件下,用误差四边形解决问题比用误差椭圆等方法更客观,合理。最后提出其简易解算方法。

ERROR QUADRILATERAL AND ITS SOLVING PROCESS

To prevent little probability event with large error from happening in a small amount observation, the paper has studied the error distribution of point positions and proved the point position errors in forward intersection are distributed in a quadrilateral, thus proposing the word, error quadrilateral. To solve problems with error quadrilateral method is more objective and reasonable than with error ellipse method under same conditions. Finally, a simple solving process is given.