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On the other hand, finite difference and finite element methods use bases with small compact support but poor continuity properties.

小波基函数在空间域和频率域中都具有局部性特征,它的性质优于有限差分法、有限元法和伪谱法中所用的基函数。

The correlation method is the one that computes the frequency response of the components of DEH by utilizing the input and output data, and then calculates the transfer function of the DEH system by using Levy method.

相关辨识法是利用输入与输出数据的自相关和互相关函数求取系统频率特性,进而拟合出其传递函数的方法。

This paper describes a feasible calibration method, its basic principle for calibrating is: A certain function relationship is existed in equivalent inductance L of coil and the distance x between the object to be measured and the sensor coil, the measurements can be conducted with this function relationship by using frequency modulation. The calibrating system consists of measuring electric circuit, high stable voltage power supply, digital frequency meter, the conductor to be measured and the calibrated displacement sensor.

文中叙述了一种较为可行的标定方法,其标定的基本原理为:线圈的等效电感L和被测物体与传感器线圈的距离x存在一定的函数关系,利用这种函数关系用调频法进行测量,标定系统由测量电路、高稳定度稳压电源、数字频率计、被测导体及被校位移传感器组成。

The experimental results show that the electron multiplication process significantly influences the system MTF, compared with non-EM, especially at high EM gain.

实验结果表明,与无倍增时相比,倍增对系统调制传递函数的影响很大,尤其是在高倍增增益时,在Nyquist频率处,调制传递函数平均下降达30%。

And the channel composed of the new radio induction system for communication is different from the parameter-constant channel and the traditional parameter-changing channel, its parameter is decided by the mutual induction between its antenna and induction-cable, by the location of its antenna, by the signal frequency passing through, its parameter has nothing to do with the time parameter. The channel composed of the new radio induction system is a new parameter-changing channel independently of time for communication.

而且,由新型无线感应系统组成的信道既不是恒参信道,也不是一般目前所知的变参信道,其信道传递函数的幅值只与信号的频率有关,与系统中天线和感应电缆之间的互感和天线的位置有关,而与时间无关,其信道传递函数的相位只与天线的位置有关,而与时间无关,由新型无线感应系统组成的信道是一种不随时间变化的新型变参信道。

So it holds a ideal ability to anti-interference and has 2 scalar level resolution in location and measuring velocity than traditional radio induction technology. And the channel composed of the new radio induction system for communication is different from the parameter-constant channel and the traditional parameter-changing channel, its parameter is decided by the mutual induction between its antenna and induction-cable, by the location of its antenna, by the signal frequency passing through, its parameter has nothing to do with the time parameter.

而且,由新型无线感应系统组成的信道既不是恒参信道,也不是一般目前所知的变参信道,其信道传递函数的幅值只与信号的频率有关,与系统中天线和感应电缆之间的互感和天线的位置有关,而与时间无关,其信道传递函数的相位只与天线的位置有关,而与时间无关,由新型无线感应系统组成的信道是一种不随时间变化的新型变参信道。

Now, if you take lots of such smooth functions, with various frequencies and amplitudes, you can add them all together to create a nice noisy function.

现在,如果你使用很多平滑函数,分别拥有各种各样的频率和振幅,你可以把他们叠加在一起来创建一个漂亮的噪声函数。

For first-order linear DPS with spatial-varying coefficient matrices a method is presented to approximate the system piecewisely by N partial differential equations with constant coefficient matrices.

它包括两大部分,一是关于分布参数系统的频率域数学描述即传递函数这一基本问题的应用研究,二是关于一类用多滞后型传递函数表示的分布系统的控制设计问题。

The derivative function of the ESD as a function of α, determine the frequency of its peak value.

把各阶导函数的ESD作为α的函数,确定其峰值频率的数值。

By means of the RITZ method,the free frequencies of the first and the second mode of the cables were given.

引用压杆屈曲函数构造两固端刚性拉索的一阶和二阶振型函数,由 RITZ法原理求得其相应的一阶和二阶固有振动频率。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。