船位随机误差几何图形

Geometric random fixing error figures

通过分析比较船位落在等面积下各种船位误差图形内的概率，得出了等概率条件下各种船位误差图形面积的大小，从而给航海人员在用误差图形表示船位精度时以明确的概念。

This paper gives the squares of various geometric random fiking error figures under equalprobability by analysing and comparing the probabilities of the various geometric fixing errorfigures of the ship’s position under equal square,and gives the navigators a clear conception ofhow to use geometric error figures to express position accuracy.