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signal
- 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，分别设计三种高通，低通，带通滤波器对信号进行滤波处理，观察滤波后信号的频谱-NI FHHFJSDG
three_highpass_filters
- 用9种方法对彩色图像进行傅里叶高通滤波，有三种基本高通滤波器，三种增强型，三种加上直方图均衡的-Use nine methods doing high-pass filtering to a color image by Fourier transform:three basic filters,three enhanced,three enhanced with histogram equalization
three_highpass_filters
- 用9种方法对彩色图像进行傅里叶高通滤波，有三种基本高通滤波器，三种增强型，三种加上直方图均衡的-Use nine methods doing high-pass filtering to a color image by Fourier transform:three basic filters,three enhanced,three enhanced with histogram equalization
work2
- (1)设计一个数字低通滤波器．设计指标如下： 通带内幅度衰减人大于1dB 阻带内幅度衰减大于15dB (2)编制计算设计的数字滤波器幅度特性与相位特性程序，并进行实验验证； (3)编制实现该数字滤波器程序并且模拟实现数字滤波 ①分别让满足所设计滤波器的通带、过滤带、阻带频率特性的正弦波通过滤波器，验证滤波器性能。 ②改变正弦抽样时间，验证数字低通滤波器的模拟截止频率是抽样时间的函数。-(1) Design a digital low-pass filter.
ex5
- FIR 及 IIR低通滤波器的设计以及 正弦信号滤波前后的频谱分析 （不同窗函数截断）-FIR and IIR filter design and low-pass filter before and after sinusoidal signal spectrum analysis (different window function truncated)
IIR
- 用双线性Z变换法设计IIR巴特沃思型数字低通滤波器，能够实现心电信号中随机噪声的去除。-Bilinear Z transform with the design of IIR Butterworth digital low-pass filter, ECG can be achieved in the removal of random noise.
ljk
- 对声音采集显示波纹 以及高斯滤波带通滤波 等等等 -Collection of sound wave and the Gaussian filter shows band-pass filter and so on and so on
FIR-matlab
- 此程序是用matlab编写的FIR低通滤波器，为了区别于别人上传的都是调用了滤波器的现成函数filter，我自己用双重for循环编写了整个滤波过程，仿真已经通过-This program is written in matlab lowpass FIR filter, in order to distinguish it from other people upload are ready-made function of the filter is called filter, for my
band-pass
- 对一个场或时间序列进行带通滤波,滤去低频振荡.- This program is used to filter the band-pass low-frequency and is useful to analyse the low-frequency characteristics of fields.
Chibyshev
- 一个4阶的切比雪夫Ⅰ型低通滤波器，可以用它对信号进行滤波。当然，滤波器的零极点图也是必不可少的。-A 4-order Chebyshev low-pass filter of type Ⅰ, you can use it to filter the signal. Of course, the filter pole-zero map is essential.
filter1
- 高通滤波器，带通滤波器，数字FIR滤波器-The Shannon entropy is a measure of the average information content one is missing when one does not know the value of the random variable. The concept was introduced by Claude E. Shannon in his 1948 paper "A Mathematical Theory
filter
- 图像频率域分析，包含低通，带通和同态滤波函数，非常值得参考。-Image frequency domain analysis, including low-pass, band pass filtering function and with the state, is worth considering.
filteringandresult
- 基于matlab的FIR低通滤波及其实现过程-Based on the FIR low-pass filter matlab and its realization
chap3
- 程序代码说明 P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波
plusrilinoise
- 基于小波包的带通滤波器设计程序。给出了小波变换的快速算法和重构算法，讨论了应用小波变换进行信号带通滤波的方法，并通过正交小波包对信号的分解，把频率成分复杂的信号分解到各个频带上，根据需要提取指定频率的信号，然后用小波包重构算法对信号进行重构，实现对信号的提取。-Based on wavelet packet band-pass filter design program. Given the fast algorithm of wavelet transform and reconstructi
Ditong
- 一个用于实现加速度数据的低通滤波器，通过多次阶跃求解进行滤波。-This Law filter.This Law filter.This Law filter.This Law filter.This Law filter.
experiment2
- 理想低通、高通、巴特沃斯低通高通滤波器对图像进行锐化和模糊处理-Ideal low-pass, high pass, Butterworth low pass high pass filter sharpening and blurring the image processing
fir54
- 在ti下实现的fir滤波器，实现带通滤波器-Achieved under the ti fir filter to achieve band-pass filter
iir
- 设计一个低通数字滤波器，满足如下设计指标： 通带截止频率：0.2pi，通带波动：1dB 阻带截止频率：0.3pi，阻带衰减：15dB 要求：分别采用巴特沃斯、切比雪夫Ⅰ型、切比雪夫Ⅱ型和椭圆滤波器原型进行设 计，比较各种设计的阶数、实际阻带衰减，分析实验结果 -Design a low pass digital filters that meet the following design specifications: passband cutoff frequency:
zi
- 在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调-In this system, the message sequence prior through FSK modulation, through the cut-off frequency of 25kHz after low-pass fi