该阈值函数具有物理意义清晰、表达式简单、计算方便等优点。
相对于经典的阈值函数，改进的阈值函数在超声信号去噪中更具有优势。
Compared with the traditional threshold functions, the improved one was more advantageous in ultrasonic signal denoising.
基于贝叶斯估计理论，得到了相应的非线性阈值函数（双变量收缩函数）。
The corresponding nonlinear threshold functions (bivariate shrinkage function) are derived from the model using the Bayesian estimation theory.
用三次多项式在硬阈值的基础上插值，使新的阈值函数保持了连续性和可导性。
The continuity and differentiability are achieved by using cubic polynomial interpolation based on hard thresholding.
本文在分析软阈值函数的基础上通过对软阈值函数进行修正，提出了平滑阈值函数。
In this paper, after analysing the soft threshold function, the smoothness threshold function is proposed by modifying the soft threshold function.
结果表明，新阈值函数能有效地消除噪声和保留心音信号的特征，具有较强的实用价值。
The results indicated that the new threshold function could better reserve the characteristics of heart sounds, eliminate noise effectively, and was of strong practical value.
然后将“贡献度”作为网格单元密度，使用密度阈值函数来定义网格的密度阈值进行聚类。
Then the Contribution is the grid density and dispose of density threshold of grid by the method of density threshold.
由凸集分离定理及终端时间阈值函数方程，我们获得了最大值原理及最优控制时间的确定方法。
Using separation theorem of convex set and the time terminal value function equation, we obtain the determining method of optimal terminal time as well as the Maximum principle.
方法：采用软、硬阈值折衷的阈值函数及自适应的阈值策略对心电信号中的不同噪声进行滤除。
Methods: Filtering different noises in ECG signals by adopting threshold function of soft-and-hard threshold tradeoff and self-adapting threshold policies.
通过监测可测点工作电压利用所构建的故障阈值函数与故障判据来实现容差电路的故障在线检测。
By monitoring accessible node voltages, fault on-line detection is performed based on the proposed fault threshold function and fault criterion.
本文提出了四种改进的阈值函数，并且在理论上证明了这四种改进的阈值函数对脉冲噪声都是有效的。
This paper presents four improved thresholding functions. They are theoretically proved to be effective to denoise impulsive noise.
对于非阈值函数，该文提出了新的逻辑函数综合算法，可以将任意非阈值函数转化为几个阈值函数和的形式。
As for non-threshold function, a novel logic synthesis algorithm is proposed, which can transform non-threshold function to the sum of some threshold functions.
仿真实验显示：无论是信噪比还是最小平方误差，改进的软阈值函数比其它三种改进的阈值函数的效果都要好一些。
Simulations show that the improved soft-thresholding function is obviously better than the other three improved thresholding functions in terms of SNR and MSE.
为提升NQR信号信噪比，根据NQR信号的特点，提出了一种基于改进阈值函数小波变换的NQR信号去噪方法。
In this work, a signal process method for NQR signals is presented, which is based on wavelet transform and specially designed for the detection of pentaerythritol tetranitrate with NQR.
针对超声无损检测中超声信号受噪声污染、信噪比不高的情况，提出了一种新的基于改进阈值函数的小波域超声信号去噪方法。
Aimed at the ultrasonic signal polluted by noises, which is low in SNR, a method of the ultrasonic signal denoising in wavelet domain based on an improved threshold function was put forward.
为了弥补传统阈值函数在消噪过程中存在的不足，得到高信噪比的心音信号更好地进行心音分析，本文提出一种新的阈值函数。
To compensate for the deficiencies of traditional threshold functions and obtain the heart sound with high SNR for better analysis, a novel threshold function was proposed in this study.
由于这些模型采用滤波器组模拟对比度敏感函数(CSF)，增加了视觉阈值获取和实时评价算法的复杂度。
As filter Banks are used to simulate the contrast sensitivity function (CSF) in these models, the complexity of visual threshold obtainment and real-time (assessment) algorithms are increased.
首先计算文本区域的灰度-梯度共生矩阵，并根据目标函数快速地找到分割的灰度和梯度最佳阈值；
The gray-gradient co-occurrence matrix of the text region is calculated, and the optimum thresholds of segmented grayscale and gradient are found quickly according to the objective function.
利用转化程度函数对历史数据进行预处理，找到与当前数据窗口相似度超过特定阈值的历史数据窗口。
The Conversion Degree Function is used to preprocess the stock market historical data and try to find the very window section whose similarity exceeds the special threshold.
讨论了逻辑函数的谱系数分类，给出了特征阈值逻辑函数的定义。
The logic function classification with spectral coefficients is discussed and the definition of characteristic threshold logic function is given.
算法针对图像阈值化分割的要求构造了一种新的模糊隶属度函数，克服了传统s -函数带宽对分割效果的影响。
A new fuzzy membership function is defined in the light of requirements of image thresholding which can overcome the influence on segmentation caused by the classical s function.
在磁刺激激活函数达到阈值条件下，调整平面螺旋线圈的结构并计算出依赖于线圈结构参数的输出性能值，从而，寻找最优的线圈几何参数。
With the activating function at stimulating threshold, an optimal coil is searched by adjusting the coil structure parameters and computing the corresponding coil output.
在圆环中只有两个自旋粒子时，外加磁场大于某个阈值时，一对自旋粒子之间才能产生纠缠，而且纠缠是时间的周期性函数。
For a ring of two spins, the entanglement between the two spin particles can be created and is a periodic function of time when the external magnetic field is greater than a critical value.
建立了一种小波软阈值径向基函数神经网络(STWRBFN)方法，同时定量分析了多组分混合物。
Soft Thresholding Wavelet-based Radial Basis Function Neural network (STWRBFN) method was developed to perform simultaneous quantitative analysis of multicomponent mixtures.
体现了基于阈值逻辑门综合布尔函数的有效性和优越性。
Then the validity and superiority of the method of realization Boolean functions by threshold logic gates is displayed.
阈值逻辑门具有很强的逻辑功能及独特的优点，用阈值逻辑门实现数字逻辑函数也一直受到关注。
Realization of Boolean function base on threshold logic gate is always studied by researchers because its strong function and special advantage.
同时提出多级阈值的概念，即姓名右边界阈值和识别阈值均是优先级的函数。
At the same time, it proposes multilevel threshold, that is, the threshold of the right bound of person names and recognition both are functions of surnames.
引入了动态星等阈值分布函数，将传统星等阈值过滤算法中的静态阈值用动态星等阈值代替，建立了一种新的动态星等阈值过滤选择模式。
With the creation of distribution function of dynamic visual magnitude threshold (VMT), the static VMT in traditional visual magnitude filtering method is replaced by dynamic VMT.
角点检测的另一个途径是计算轮廓的曲率函数，因为角点是曲率函数的最大值，因此很容易通过阈值的方法检测出来。
Another way to corner detection is to calculate the contour of the curvature function, because the corner is the maximum curvature function, it is easy to pass the threshold used to detect them.
角点检测的另一个途径是计算轮廓的曲率函数，因为角点是曲率函数的最大值，因此很容易通过阈值的方法检测出来。
Another way to corner detection is to calculate the contour of the curvature function, because the corner is the maximum curvature function, it is easy to pass the threshold used to detect them.
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