1) Butterworth wavelet
巴特沃斯小波
1.
The de noise trsults of seven order Butterworth wavelet (based on IIR filter banks) and Daubechies wavelet (based on FIR filter banks) are analyzed, respectively.
分析比较了由有限冲激响应 (FIR)滤波器组构造出的小波与无限冲激响应 (IIR)滤波器组构造出的小波 ,将基于IIR滤波器组的 7阶巴特沃斯小波与基于FIR滤波器组的Daubechies小波在信号降噪中的效果进行了比较 ,得出了低阶IIR滤波器组构造的小波可以与高阶FIR滤波器组构造出的小波分析效果相似 。
2) Butterworth filter
巴特沃斯滤波器
1.
By changing the order of the Butterworth filter, the magnitude response of the wavelet function can be controlled and the frequency alias in the wavelet transform can be restrained.
提出了一种基于巴特沃斯滤波器的离散小波变换快速算法 ,通过控制巴特沃斯滤波器的频率截止特性来抑制小波变换中的频率混迭现象 ,还可通过控制各小波函数对应的巴特沃斯滤波器的截止频率位置来改变离散小波变换的频率分辨率 ,实现 1 / 1频程 (二进小波变换 )、1 / 3频程、1 / 6频程等高频率分析精度的离散小波变
3) Butterworth
巴特沃斯
1.
The classical method for the digital Butterworth filter design is to work out corresponding analog filter first,then obtain the digital Butterworth filter from the bilinear transform,therefore the traditional method relies on the analog filter,and cannot obtain the zeros-poles plot equal filter.
设计数字式巴特沃斯滤波器的传统方法是先设计好相应的模拟滤波器,再经过双线性变换得到数字式巴特沃斯滤波器,因此必须依赖于模拟滤波器,同时无法得到零极点数量不相等的滤波器。
2.
In order to make the digital filter to maintain the frequency characteristic of the original analog filter,a expression for the prewarping is derived according to the definition of the bilinear transform,and a low-pass Butterworth digital filter is designed.
并利用该式设计了一个低通巴特沃斯数字滤波器分别对三种情况(双线性变换、提出的预畸变方法和模拟滤波器)的幅度响应进行了计算机模拟。
3.
Here, Butterworth-respond method is adopted to approach ideal characteristic, and the rank order of the filter showed to be the main factor that influences a low-pass filter accuracy.
介绍了如何由物理不可实现的理想低通滤波器到实际可实现的数值模拟滤波器的具体过程,具体采用了巴特沃斯响应逼近理想特性,并说明了滤波器的阶次是影响低通滤波器精度的主要因素,最后结合实例,借助MATLAB进行了模拟低通滤波器的设计仿真。
4) Butterworth Low-Pass Filter
巴特沃斯低通滤波器
1.
In this paper, the characteristics of Butterworth low-pass filter are first analysed, and then how to use the functions, which are provided by signal processing toolbox of MATLAB, to design Butterworth low-pass filter is proposed.
首先分析了巴特沃斯低通滤波器的特性 ,然后用MATLAB的信号处理工具箱提供的函数设计了巴特沃斯低通滤波器 ,使得巴特沃斯滤波器的设计变得更加简单、快捷、直观。
5) Butterworth Band-Pass Filter
巴特沃斯带通滤波器
1.
In this paper,the features of NEMP and LEMP are introduced,and Butterworth Band-Pass Filter is put forward,which is set in the front-end of the photo-electricity mobile communication system,and which can defend NEMP and LEMP.
本文中介绍 LEMP 和 NEMP 的特点,设计了置于全光介质移动通信系统前端,在通带内具有平坦的幅度响应,能对 NEMP 和 LEMP 进行有效防护巴特沃斯带通滤波器电路保护模块。
6) Butterworth high-pass filter
巴特沃斯高通滤波
1.
The basic principle of image enhancement of linearity gray transform based on removing redundance gray and Butterworth high-pass filter based on the Fourier transform is analyzed,and their realization methods in image enhancement are discussed,their respective advantages are indicated.
分析了去灰度冗余的线性灰度变换与基于傅里叶变换的巴特沃斯高通滤波图像增强的基本原理,讨论了它们在图像增强中的实现方法,指出了各自的优点。
补充资料:普雷沃斯特试剂(Prevost reagent)
分子式:Ag(C6H5COO)2I
CAS号:
性质:又称普雷沃斯特试剂(Prevost reagent)。用苯甲酸银与碘在苯中加热回流制取。用作将烯烃转变为邻二醇二苯甲酸酯衍生物,后者水解后得邻二醇类衍生物。
CAS号:
性质:又称普雷沃斯特试剂(Prevost reagent)。用苯甲酸银与碘在苯中加热回流制取。用作将烯烃转变为邻二醇二苯甲酸酯衍生物,后者水解后得邻二醇类衍生物。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条