查询词典 frequency function

The circuit designing that device happened in the function signal being that a kind of controls owing to ICL8038 , module , AT89C52 monolithic machine under the control of module happened in wave form , lock appearance ring frequency division implement , keyboard , numerical code display , DAC0832 enlarge from precise function of ICL8038 composes capital.

本设计是一种基于ICL8038控制的函数信号发生装置，由ICL8038精密函数波形发生模块、AT89C52单片机控制模块、锁相环分频器、键盘、数码管显示器、DAC0832放大电路构成。

The wavelet function is very suitable for solving the boundary value problem of ODE,not only for it characteristic of finite basis function,but has advantage of frequency method.

由于小波函数既有有限元基函数的特征，又有频域方法的优点，加之对高频信号的聚焦能力，非常适合求解微分方程边值问题。

In this paper, the grain boundary internal friction peak in polycrystalline aluminium was measured both as a function of frequency and as a function of temperature by forced vibration method.

近五十年来，晶界弛豫的温度内耗峰主要是用自由衰减方法进行研究的，这种研究是建立在下面的假设上：即。。。

Function is matched with the frequency spectrum function of input signal.

其传递函数与输入信号的频谱函数相匹配的一种滤波器。

A filter whose transfer function is matched with the frequency spectrum function of input signal.

其传递函数与输入信号的频谱函数相匹配的一种滤波器。

By these analyses,we will know more merits of MATLAB precessing time analyse function and frequency analyse function.

通过对这些系统的分析，进一步了解MATLAB在处理时域分析函数和频域分析函数时的优点。

The subsection integral is used to get a simple function at first in the numerical calculation, and boundary integral is realized by gauss integral on each panel and line, then the complexity and isstability as a result of the high frequency surge function can be avoided.

数值计算中，首先采用分部积分对被积函数进行简化处理，然后采用高斯积分实现面元和线元上的积分，避免了被积函数为高频振荡函数所带来的数值计算的复杂性和不确定性。

In view of universality, function generator with the core of high speed MCU uses the chips of DDS and FPGA. On the basis of generating routine sine wave, it can modulate signal frequency and range. At the same time function generator can generate binary PSK and ASK signal.

考虑到通用性，信号发生器以高速单片机为核心，利用DDS芯片和FPGA，在产生常规正弦波的基础上，还可以对信号进行频率调制和幅度调制；同时还能产生二进制PSK、ASK信号。

The definition of Wavelet Analysis is that shifting the mother wavelet e.g. which has limited energy, such as shifting for, then proceeding dimensions, we obtained wavelet basis function ,, which make the inside product to the function to analysis With the Fourier transformation to the and, then the equivalent frequency spectrum of wavelet transformation can be expressed as where 、 are the transformations of 、 respectively and i is an imaginary number unit.

小波变换的含义是：把一具有有限能量的母小波，如进行移位后，再进行尺度的伸缩得到小波基函数为然后与待分析的函数作内积，即对和作Fourier变换后，可得到小波变换的等效频域表示为：其中、分别是、的Fourier变换，i为虚数单位。

Then, incomplete beta function is applied to enhance the image′s global contrast in the low frequency subband, and nonlinear gain function is used to process the coefficients at each scale in the directional bandpass subbands respectively, which suppresses small coefficients and enhances big coefficients by threshold denoising method.

引入非完全贝塔函数对低频子带系数进行处理，提升图像整体对比度；采用非线性增益函数对各带通方向子带系数进行处理，通过估计噪声水平设定阈值，抑制绝对值小于阈值的系数，增强大于阈值的系数。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。