为提高标准曲线的制作精度，探讨了重复测定条件下，标准曲线的统计比较与合并估计方法．。

To raise the accuracy in the drawing both the statistical comparison and the method of combined estimation of the standard Curve were approached the condition of repeateddetermination.

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目的通过估计误差方差阵，对多传感器组合导航系统中不同的融合数据进行定位精度比较，为系统定位提供选择数据的依据。

Aim Using the variance matrix of estimated error, positional accuracy can be compared with different mixing together data, it has put forward a kind of basis for system location to select data.

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最后模拟比较了这两种估计的精度。

And then we compare the degree of accuracy between the two methods of estimation.

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