The paper presents a method of motion curve frequency domain filtering in Omni-directional M-mode echocardiography images based on Discrete Fourier Transform (DFT).
介绍一种基于离散傅里叶变换(DFT)的全方向M型超声心动图运动曲线频域滤波技术。
Based on the characteristics of wavelet transform, the wavelet Singularity Detection is used to locate the feature point and anomaly extension of the Rayleigh wave dispersion curve.
基于小波变换原理，利用小波分析中的奇异性检测方法来对瑞利波频散曲线的特征点和波动区段定位。
Based on the equal-loudness curve, a speech frequency equalizer is designed combing with the principle of electronic-to-sound transform.
以人耳等响曲线为依据，结合电声转换的原理，设计了一种语音频率均衡电路。
In outline recognition, to reduce the misjudge result from calculated error of the core position, reference frame transform and second derivative of curve were adopted.
轮廓识别采用坐标变换及曲线求二阶导数，避免了果核位置判断误差造成的误判。
According to the voltage and current waveforms of arc, an ideal voltage current transform characteristic curve and an equivalent circuit representing for long arc have been described in this paper.
根据长电弧电压电流波形，建立了电压方波电弧的理想电压电流转移特性曲线和对应的电弧等效模型。
This model can transform units bidding curve of power producer in market into a one-dimensional feature vector, so it can implement classification of units bidding using classical clustering method.
利用平均电价差值积分模型将电力市场中发电商的机组报价曲线转换为一维特征向量，从而采用传统聚类方法对机组报价曲线实现分类。
The power spectra curve as a function of the mode number of outer or inner profiles are also calculated by the application of fast Fourier transform to the circumferential profile data.
应用快速傅里叶变换算法对靶丸圆周轮廓数据进行分析，获得了靶丸表面外轮廓或内轮廓模数-功率谱特征曲线。
In the process of the profile curve is obtained. The method is used of the data is imported from the other file, so the fussy coordinate transform is avoided, an example of worthiness us…
在得到齿廓曲线的过程中，利用了从其他文件倒入数据的方式，避免了繁琐的坐标变换，为其他类似的造型过程提供了一个值得借鉴的范例。
They are used to yield accurate estimation for the hop frequencies and hop rate, which are fast 4th-order cyclic cumulants algorithm, time-frequency backbone curve analysis, and wavelet transform.
利用快速四阶循环累积量算法、时频脊线分析与小波变换相结合的方法，实现了跳频频率和码速率等参数的高精度估计。
Fourier-transform method was a method could be used for the design of Gradient-index thin film according to the desired spectral transmission curve.
傅里叶合成方法是一种可以根据期望的光谱特性曲线设计渐变折射率薄膜的方法。
This paper proposes a new method of curve fitting based on cloud transform. Some experiments validate the proposed method.
提出了一种基于云变换的曲线拟合新方法，取得了良好的实验效果，证明了基于云变换曲线拟合方法的有效性。
The major work in the paper is the transform of the pickle curve-centering device of the Baosteel cold-rolled sheet-steel rolling mill.
论文对宝山钢铁股份有限公司冷轧薄板厂的酸洗弧形对中装置进行改造。
This paper also does some examples to show that a curve matching method based on wavelet deal with false value better and have higher accuracy than modulus maxima of wavelet transform method.
通过算例验证，结果表明该方法与传统的小波模极大值法相比，较好地解决了行波波形的伪极值点问题，提高了故障定位精度。
This paper also does some examples to show that a curve matching method based on wavelet deal with false value better and have higher accuracy than modulus maxima of wavelet transform method.
通过算例验证，结果表明该方法与传统的小波模极大值法相比，较好地解决了行波波形的伪极值点问题，提高了故障定位精度。
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