本文给出了一种基于块脉冲算子的离散逼近格式。
In this paper, a discrete approximation scheme based on block pulse operator is given.
在NURBS曲线离散逼近算法的基础上，进一步提出了NURBS曲面离散逼近算法，并得出曲面面积近似计算方法。
Depended on the approximating subdivision algorithm of curve, the subdivision algorithm of NURBS surface has further proposed. And it draws the approximate calculating method of NURBS surface areas.
离散子波变换将离散时间信号分解为一系列分辨率下的离散逼近和离散细节。紧支的正交规范子波与完全重建正交镜象滤波器组相对应。
The discrete wavelet transform decomposes a discrete time signal into an approximation sequence and a detail sequence at each level of resolution.
从离散系统状态转移矩阵的算法比较方面。借助逼近插值给出频谱插值法，结果较为实用。
Spectrum interpolation method is obtained by use of approximation interpolation, from algorithm comparison of discrete system matrix, and some useful results are obtained.
在此框架下，我们得到了半离散与全离散情形的最佳逼近阶的估计。
Under this frame the optimal error estimates are obtained for semidisecrcte and fully discrete states.
提出了计算离散傅氏级数的折线逼近法，并导出了其幅值计算式。
This paper presents the fold line approximation method of discrete Fourier Series, and conducts calculation formula of harmonics.
针对一类非线性离散时间系统，根据模糊逻辑系统的逼近性质，给出了一种自适应模糊逻辑控制器的设计方法。
Based on the approximation capability of fuzzy logic systems, a design method of an adaptive fuzzy logic controller is given for a class of nonlinear discrete time systems.
通过由一般的离散过程逼近连续随机过程的方法，给予证券价格按有漂移率的几何布朗运动变化的一个严格的证明，并指出了股票价格过程的一般模型。
In this paper, the authors give a strict proof of geometric Brown motion displayed by stock prices using the methods of approximation from discrete process to continuous stochastic process.
本文讨论MIMO离散系统的随机时变参数基于随机逼近法的辨识问题。
This paper presents new developments of parameter identification for MIMO discrete stochastic systems with random parameters. These algorithms are based on the stochastic approximation method.
利用构造出的多边形有理插值，采用凸多边形逼近任意凸域，通过区域边界温度离散值，插值近似区域内的温度场分布。
A convex domain is approached by a convex polygon, and the approximated temperature distribution within the domain can be interpolated with the temperature data at the boundaries of the domain.
本文讨论MIMO离散系统的随机时变参数基于随机逼近法的辨识问题。
This paper presents new developments of parameter identification for MIMO discrete stochastic systems with random parameters.
其收敛性的证明是依据其渐近扩散展开式，在边界层上得到的误差估计逼近其离散纵标方法的解。
Our proof of the convergence is based on an asymptotic diffusion expansion and requires error estimates on a matched boundary layer approximation to the solution of the discrete-ordinate method.
很明显，当采样间隔减小时，离散变量会逼近连续变量。
A discrete variable will obviously approach a continuous variable as the sampling interval is decreased.
对五坐标曲面加工中由离散线性运动逼近理想刀具轨迹所引起的理论加工误差进行了较严格的分析。
The theoretical error in five axis NC machining, which is resulted from approximating the perfect continuous tool path with discrete linear segments, is strictly analyzed.
针对非线性离散系统，构造t - S模型，引入参数不确定项和时滞项，使得模糊模型能够更精确逼近原系统。
For nonlinear discrete systems, the T-S model is constructed and the parametric uncertainty and time-delay terms are introduced to make the fuzzy model approach to the original system more exactly.
在各向异性条件下，讨论了双曲型方程的一类非协调有限元逼近，给出了半离散格式下的最优误差佑计。
A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.
在各向异性条件下，讨论了双曲型方程的一类非协调有限元逼近，给出了半离散格式下的最优误差佑计。
A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.
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