搜索资源列表
harr
- harr wavelet 哈尔小波变换的代码,高频低频-harr wavelet
Matlab_wavelet
- 掌握小波分析在图像分析等各方面的应用。对图像进行二维离散小波分解、多尺度二维离散小波分解 并提取二维小波分解的高频系数和低频系数, 画出原始图形并显示分解结果。-Master the application of wavelet analysis in image analysis and other applications. Image two-dimensional discrete wavelet decomposition, multi-scale two-dimensiona
li11_7
- 利用小波分解,去掉图像高频部分,只保留低频部分的图像压缩实例-The use of wavelet decomposition to remove high-frequency part of the image, leaving only the low-frequency part of the image compression examples
xiaobofenxijiangyi
- 小波(Wavelet)这一术语,顾名思义,“小波”就是小的波形。所谓“小”是指它具有衰减性;而称之为“波”则是指它的波动性,其振幅正负相间的震荡形式。与Fourier变换相比,小波变换是时间(空间)频率的局部化分析,它通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了Fourier变换的困难问题,成为继Fourier变换以来在科学方法上的重大突破。有人把小波变换称为“数学显微镜”。 这套讲
chengkongfangda
- 完整的程控放大器菜单加控制程序, 1开始菜单 2功能选择高频低频 3选择手动调节还是自动调节4 若自动调节输入放大增益值 结束页然后根据你所选择的功能进行控制程控放大器-programable gain amplifier
technofysica_sets_small_tudelft
- 比较经典的机械振动信号,分为高频、中频和低频,可用在实验中-This is a typical vibration signal, it includes high frequency, middle frequency and low frequency. It also can be used in the experiment
code
- 文件中代码实现小波图像融合,对低频和高频系数采用不同准则,有详细说明-File code implementation of wavelet image fusion, of the low and high frequency coefficients using different criteria, are detailed
digitalfilter
- 设计产生一个连续信号,包含低频,中频,高频分量,对其进行采样,进行频谱分析,使用矩形窗设计不同特性的数字滤波器对信号进行滤波处理,分析所设计滤波器(画出了频率特性曲线),并对信号进行滤波,画出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,同时设计出了一个友好的人机交互界面。-Designed to produce a continuous signal, including low frequency, medium frequency, high frequency componen
lFusion
- 小波变换是在傅立叶变换的基础上发展起来的,它优于傅立叶分析的地方是它在空域和时域都是局部化的,其局部化格式随频率自动变换,在高频处取窄的时(空)间窗,在低频处取宽的时(空)窗,适合处理非平稳信号,在图像处理、模式识别、机器人视觉、量子力学等领域得到广泛应用。-Wavelet transform is a Fourier transform developed on the basis, it is better than Fourier analysis of the place is that
FFTyuandaima
- 输入信号的时域和频谱分析 输入信号为ft=[5cos(600*pi*t)+4cos(90*pi*t)+9]/18 输入信号为高频和低频信号的叠加:高频300Hz,低频45Hz- Of the input signal in time domain and spectral analysis of the input signal is ft = [5cos (600* pi* t)+4 cos (90* pi* t)+9]/18 input signal for the hi
Txiaobo
- 该程序(基于matlab)为小波变换在数据压缩方面的应用。原理:数据可分为高频部分和低频部分,高频部分反映了细节,而低频部分则反映概貌,故压缩部分应为高频部分。数据经此程序变换后将压缩为原来的一半。-This program (based on matlab) for the wavelet transform applications in data compression. Principle: Data can be divided into high-frequency part and
Matlab
- 信号去噪的基本步骤: (1)信号的小波分解; (2)小波分解高频系数的阈值量化; (3)信号的小波重构。使用分解的低频系数以及阈值量化后的高频系数进行小波重构。 -The basic steps of signal denoising:( 1) of the wavelet decomposition of signals ( 2) the high frequency coefficients of wavelet decomposition threshold quan
wavelet-image
- 二维图像信号的去噪步骤: (1)二维图像信号的小波分解。选择合适的小波与恰当的分解层次N,并对待压缩的二维图像信号进行N层分解计算。 (2)对分解后的每一层高频系数,选择一个恰当的阈值,并对该层高频系数进行软阈值量化处理。 (3)二维图像信号的小波重构。用小波分解后的第N层近似(低频系数)和经过阈值量化处理后的各层细节(高频系数),对二维信号进行小波重构。-Two-dimensional image signal denoising steps: (1) two-dimensiona
Grounding-for-Circuits
- 高频低频电路接地技巧,主要围绕放大电路设计问题-Grounding for Low and high frequency Circuits
xiaobo
- 小波分析使用的相关例子,也可以改变输入函数,进行想要的高频低频滤波-Wavelet analysis to use
xiebo
- 电压谐波信号,利用HHT和S变换分析提取其特征,获得其高频低频特性。-Voltage harmonic signals, using HHT and S-transform analysis to extract its characteristics, access to its high-frequency low-frequency characteristics.
zhendang
- 电压震荡信号,利用HHT和S变换分析提取其特征,获得其高频低频特性。-Voltage oscillation signal, using HHT and S-transform analysis to extract its characteristics, access to its high-frequency low-frequency characteristics.
tusheng
- 电压突升信号,利用HHT和S变换分析提取其特征,获得其高频低频特性。-Swells signal, using HHT and S-transform analysis to extract its characteristics, access to its high-frequency low-frequency characteristics.
shanbian
- 电压闪变信号,利用HHT和S变换分析提取其特征,获得其高频低频特性。-Voltage flicker, using HHT and S-transform analysis to extract its characteristics, access to its high-frequency low-frequency characteristics.
数字图像处理
- 对图像进行灰度变化,高频低频图像通过,椒盐和高斯噪声加噪的变换(The gray level of the image is changed, and the high frequency and low frequency images are transformed by adding salt, pepper and Gauss noise)