There are two methods to estimate the number of the same values of two single-attribute relations in join's attribute:static estimation and dynamic estimation.
估计两个单属性关系在连接属性上取相同值的个数的方法有两种：静态估计法和动态估计法。
Permanent flux based on dynamic estimation can offer real-time accurate rotor flux information, which can obviously improve the control performance and efficiency of PMSM.
基于动态估算的电机永磁体磁链，可为永磁同步电机控制系统实时提供准确的转子磁链信息，提高系统控制性能和效率。
The application of Wavelet in dynamic estimation and data fusion is introduced in this paper; an optimal real-time multiscale estimation and fusion algorithm for dynamic system is given.
介绍了小波变换在动态估计和数据融合中的应用，给出了一种实时的最优动态多尺度估计和融合算法。
Especially the latest fast estimation method, then expands it on this base, ratiocinates the recursive algorithm based on extreme order statistics, realizing the dynamic estimation of parameters.
特别是最新的快速估计方法，并在其基础上进行了扩展，推导出基于极端顺序统计量的递推算法，实现了参数的动态估计。
Especially the latest fast estimation method, then expands it on this base, ratiocinates the recursive algorithm based on extreme order statistics, realizing the dynamic estimation of parameters.
特别是最新的快速估计方法，并在其基础上进行了扩展，推导出基于极端顺序统计量的递推算法，实现了参数的动态估计。
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