函数的周期

The paper decides to set out from the angle of the nonparametric function periodic model.

透过非参数函数周期模型的序列特徵萃取的特性来进行周期性序列的分群。

Some existing power definitions are analyzed in this paper and a universal definition of power for n-phase electric circuits based on periodic function space is proposed.

该文通过分析现有的一些功率定义，提出了一种基于周期函数空间的n相系统功率定义方法。

In this paper, an orthogonal function method is presented based on the idea to suppose periodic solution with the method of harmonic balance.

本文根据谐波平衡法假设周期解的基本思想，提出了一种分析非线性振动特性的正交函数法。

This function describes 3-D representations of a repeating sine curve.

图6：这个函数描述了一个周期变化的正弦曲线的3 – D 表现形式。

What's more, this solution technique is available to obtain the potential subharmonic resonance and it overcame difficulties of traditional analytic Harmonic Balance Method based on the describing functions in resolving superharmonic and subharmonic response.

克服了传统的解析谐波平衡法基于描述函数进行而难以求解一般周期响应和次谐波响应的缺点。

Methods For different body aerodynamic roll angles, proper wind-tunnel test schemes were selected and trigonometric series were used for aerodynamic interpolation.

按照不同的气动滚转角，进行合理有限的吹风，然后以三角周期函数进行插值。

Under appropriate conditions the existence and the continuous dependence of its homoclinic orbits and periodic orbits on the perturbing small function are obtained.

在一定条件下，得到了同宿轨与周期轨的存在性，即这一类系统在这类小参数函数扰动下是结构不变的。

Experiments indicate that the method in this paper can gain better decompositions.

实验证实本文提出的利用周期紧支撑径向基函数改进BEMD方法，能够获得较好的BEMD分解结果。

Methods Using periodic pressure signals exciting and regressions. Results The dynamic characteristics of tubing system were also discussed.

方法采用周期激励方法的试验方法，并用多项式回归方法对试验结果进行回归处理，给出了传压管路的频率响应函数。

In this paper, the dimension of the double periodic cubic C1 spline space over non-uniform type-2 triangulations is determined and a local support basis is given.

本文确立了非均匀Ⅱ型三角剖分上双周期三次样条函数空间的维数，并给出了一组具有局部支集的基底。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了