This paper describes an optimal estimating method for the celestial positioning and its accuracy.
论述了天文定位的最优估计方法及其精度。
For correctly estimating a three-station locating system, it is significant to carefully analyze the influence of altitude on the accuracy of three-station locating system.
详细分析高度对三站定位系统定位精度的影响对于正确评价一三站时差定位系统具有极其现实的意义。
In order to obtain an efficient extraction to mineral resources, a method with sufficient accuracy for estimating the grade and tonnage of ore reserve is required.
有效地开采矿物资源需要对赋存的品位及矿量有一准确的估计。
It is shown that the correlation based on the net tip resistance has much higher accuracy for estimating the consolidation yield stress of lagoonal deposit soil than other methods.
结果表明：基于净锥尖阻力的相关关系比其他经验方法具有较高的精度，可以有效地预测该地区泻湖相沉积土的固结屈服应力和超固结比。
Objective To determine the accuracy of various methods for estimating fetal weight at labor .
目的：用超声和临床方法，四个公式估计胎儿体重，以比较其准确性。
Hence a node may obtain more observations for estimating previous location sets. Then the previous location sets are recomputed by the MCL method to improve the location accuracy of the present time.
待定位节点再利用蒙特卡罗算法迭代计算前面时间段的位置样本集，并充分利用观测值滤除较差样本，从而提高当前时刻的定位精度。
Hence a node may obtain more observations for estimating previous location sets. Then the previous location sets are recomputed by the MCL method to improve the location accuracy of the present time.
待定位节点再利用蒙特卡罗算法迭代计算前面时间段的位置样本集，并充分利用观测值滤除较差样本，从而提高当前时刻的定位精度。
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