Synthesizing the two identification methods of weighted least square and resricted memory , the mutivariable system recursive estimate algorithems of unknown parameter of autoregressive models in the presence of controlled inputare are given 摘要将加权最小二乘法和限定记忆两种参数估计方法相综合,给出了多变量系统带控制输入的自回归模型未知参数的递推估计算法。
Secondly , a method of weight integration of " votes " is proposed . simulation results show that the method can significantly improve the separability between the local peak cell and its neighbors compared with the standard binary integration method 提出了一种参数积累单元的权值积累方法,改善了峰值单元与其附近单元的积累值的可区分性,从而为参数提取创造了有利条件。
The main idea of this method include two steps : at first , the approximate expression of function is obtained by method of weighted residuals ; then the first and second moment of the random function can be calculated with method of moment 该方法的基本思想是利用加权残值法获得问题解的近似函数表达式,在此基础上利用求解随机变量函数的矩法求得随机函数的一、二阶矩等统计数字特征。
To analyze the different locations of the intersection of a ray and a polygon quickly , a scheme of calculating the number for the intersection point is established based on the structure query language ( sql ) and the method of weighting each side of the polygon 摘要采用对多边形各边赋权值的方法,分析射线与多边形相交的不同情况,给出了使用结构化查询语言实现交点个数求解的快速解决方案。
According to two - dimension flow continuity , momentum equations , suspended sand diffusion equations and two - phase flow bed sand motion equations , hydraulic - dynamics sediment accumulation mathematical model between two impounding dams was set up by adopting the methods of weighting and concentrating masses 根据二维水流连续、运动方程、悬沙扩散方程和两相流底沙运动方程,采用加权集中质量剖分方法,建立了蓄水两坝间水动力、泥沙淤积数学模型。