In order to improve the checking efficiency while satisfying the prerequisites for accuracy simultaneously, the recursive least square method is applied to the angular errors checking process.
在满足角位置误差测量精度的情况下，为了提高测试效率，将递推最小二乘法应用于组合测角中。
Kalman filter is a high efficiency, optimal data process method, which is a realtime recursive filter of linear, non-bias and least square.
卡尔曼滤波，是线性、无偏、最小方差的实时递推滤波，是一种高效、优化的数据处理方法。
Especially in process of recursive refine, the efficiency can be improved greatly by applying the inherit reasoning method which is presented in this paper.
特别在细化过程中，提出并应用了“继承推理”方法来提高系统效率。
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