改变部分独立观测值权对平差结果的影响

The Influence on Adjustment Results after Changing Some Weights of Independent Observations

基于等价观测值的思想，利用间接平差函数模型，推导了改变部分独立观测值权对最终平差结果的影响，并给出了相应的精度评定公式。在推导过程中，把权的改变等价于观测值的改变进行处理，使推导过程简便直观。

Depending on the theory of equivalent observations, we use the indirecrt adjustment model to discuss the influence on adjustment results after changing some weights of independent observations, and we also provide the formulae of precision． In the process of illation, we equate the change of weight to the change of observation, which predigest the illation．