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带通fir设计及图形显示比较
- 数字带通滤波器的设计过程。共3个源程序。其中，dos.cpp为带通FIR的源程序，其中的滤波器阶数n，滤波器的低频fln，滤波器的高频fhn，窗函数w，可以按照自己的要求改变。这里采用的是汉宁窗。主函数main.cpp实现输入与fir的h(n)的卷积，输出结果Y(n)，并将其存储在y.txt中。最后，graphics.cpp从y.txt读取数据，再由语句画出波形，可以清楚地看出计算结果是否正确，并进行比较。-digital band-pass filter design process. A t
band-pass-filter 线性相位FIR带通滤波器
- 用MATLAB函数fir1设计一个具有如下指标的线性相位FIR带通滤波器：阻带截止频率为0.55pi 和0.85pi，通带截止频率为0.65pi和 0.75pi，最大通带衰减为0.2dB，最小阻带衰减为42dB。分别利用下面的窗函数来设计滤波器：汉宁窗、汉明窗、布莱克曼窗。对于每种情况，给出其冲激响应系数并画出设计的滤波器的幅频响应。-Designed with a MATLAB function with the following indicators fir1 linear phase F
fir-low-pass-filter-design
- 用矩形窗设计了一个FIR线性相位低通数字滤波器。截止频率0.5π，阶数为21阶。求出了系统函数并画出了幅频响应。-A rectangular window design with linear phase FIR low-pass digital filter. Cutoff frequency 0.5π, the order of 21 bands. Find the system function and plotted the amplitude-frequency response.
band-pass-filter-by-remez-function
- 用MATLAB中remez函数设计一带通FIR滤波器。打印出单位脉冲响应 ，并画出幅频响应。-Design using MATLAB function in the vicinity of remez pass FIR filter. Print out the unit impulse response and frequency response plot.
ECGyuchuli
- ECG心电信号预处理，高通滤波器，滤除呼吸基线漂移，带阻滤波器，滤除工频干扰，并两组滤波器的处理速度进行比较-ECG signal preprocessing, high-pass filter, filter respiratory baseline drift, band stop filter, filter frequency interference, and two filters to compare the processing speed
laplacian-filter
- matlab implementation of laplacian filter in spatial and frequency domain
FIR
- 用窗函数法设计一个长度N等于8的线性相位FIR滤波器。其理想的幅频特性为 分别用矩形窗、Hanning窗、Hamming窗、Blackman窗、Kaiser窗(ｂ=8.5)设计该滤波器。 -Window function method used to design a length N equal to 8 the linear phase FIR filter. Its ideal amplitude-frequency characteristics of rectangular w
Butterworth
- 内含巴特沃思滤波器（Butterworth）MATLAB代码，分高通与低通两种情况，并用mesh显示滤波器的三维图-Containing Butterworth filter (Butterworth) MATLAB code, sub-high-pass and low pass both cases, with mesh filter of three-dimensional map display
yuyin
- 语音信号的采集与处理，数字信号处理课设，可对已录制好的语音进行高中低频的滤波处理，并可现场录音处理，包含所有源代码，GUI，课设报告等。-Voice signal acquisition and processing, digital signal processing class- can be carried out on the high school has recorded the voice of low-frequency filter processing, recording
iirh
- 利用IIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db-IIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuat
filter-deniose
- matlab下实现降噪，功率谱计算。％程序中设定采样点数为256个，采样频率为10000hz， ％输入信号为随机噪声和两个正弦的合成信号 ％设定的滤波器的截止频率为3500hz ％通过挈比雪肤滤波器，运行程序，比较滤波前后的频域波形 ％滤波去除了高频信号-matlab achieve noise reduction, power spectrum calculation. Sampling procedure set for 256 points, the sampling f
filter
- ％ y=filter(sig,fmin,fmax) ％ 对信号进行理想滤波，可完成低通，带通 ％ sig为被滤波信号 ％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器 ％ fmax为上限频率，fmax>fmin ％ fs为信号的采样频率 ％ y为经过滤波后的信号 -％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be com
filter
- 绘制四种常用低通模拟滤波器（贝赛尔滤波器，巴特沃斯滤波器，切比雪夫滤波器及椭圆滤波器）幅频特性曲线-Draw four commonly used low-pass analog filter (Bessel filter, Butterworth filter, Chebyshev filter and elliptic filter) amplitude-frequency characteristic curve
MATLAB-IIR-filter-design
- 基于MATLAB的工频干扰陷波器设计-MATLAB-based frequency interference notch filter design
IIR-filter-ECG-baseline-drift
- MATLAB-based frequency interference notch filter design
Filter-design
- 基于matlab 示波器的相关程序 Af2Df draft 窗函数 模拟滤波器 频率采样 直接设计IIR滤波器-Procedures based on matlab oscilloscope Af2Df draft Window function Analog filter Frequency sampling Direct IIR filter design
Lowpass-frequency-filter
- the lowpass filter matlab codes for image processing.
Frequency Filtering
- The reason for doing the filtering in the frequency domain is generally because it is computationally faster to perform two 2D Fourier transforms and a filter multiply than to perform a convolution in the image (spatial) domain. This is particularly
Time-Frequency Toolbox
- Time Frequency Toolbox matlab时频分析工具箱,里面有各种时频分析函数，用matlab实现的，小波变换，Gabor变化，短时傅里叶变换等等(AF Ambiguity function AR Auto-regressive (filter or model) ASK Amplitude shift keyed signal BJD Born-Jordan distribution BPSK Binary phase shift keyed signal BUD
filter
- 对信号进行快速傅里叶变化，将结果直接输出为幅值，频率，相位参数，并包含还原算法。附有一个满足各种滤波形式的滤波脚本文件(The results are directly output as amplitude, frequency, and phase parameters, and the restoration algorithm is included. There is a filter scr ipt file that satisfies all kinds of filtering