【摘要】 Helmert法是通过求出两类观测值的单位方差，来修正其先验权，用迭代法最终求得正确的权。本文提出，如果已知两类观测值的单位方差之比，即可定出正确的权，从而使计算简单化。更多还原

【Abstract】 Helmert method updates a priori weights through solving unit variance of two sorts of observed values, and solves the right weight through repeated algorithm.The paper put forword that if proportion of the unit variance of two sorts of observed values are known. then the right weight can be defined, there fore simplified the calculation.更多还原