我们利用MATLAB来生成滤波器的系数,也就是利用MATLAB来设计一个低通滤波器。 在输入框输入fdatool,按照以下参数进行设计 然后导出为函数,如下所示: function Hd = low_pass_filter %LOW_PASS_FILTER Returns a discrete-time filter object. % MATLAB Code % Generated by MATLAB(R) 9.5 and Signal Processing Too...
% FILTER_2, by itself, creates a new FILTER_2 or raises the existing % singleton*. % % H = FILTER_2 returns the handle to a new FILTER_2 or the handle to % the existing singleton*. % % FILTER_2('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBA...
打开Filterbuilder工具 打开Filterbuilder工具有两种方式,一种是在MATLAB的的应用程序中的信号处理和通信一栏下,如图所示:(我用的是MATLAB2016a版本,PS:点击图标右上方的星星图标,可以将工具添加到收藏夹,以后打开方便。) 第二种是在MATLAB的命令行窗口直接输入filterbuilder回车,选择lowpass,然后确定。 设计一个低通FIR...
% MATLAB Code % Generated by MATLAB(R) 9.4 and DSP System Toolbox 9.6. % Generated on: 09-Apr-2019 11:22:46 % FIR Window Lowpass filter designed using the FIR1 function. % All frequency values are in Hz. Fs = 16000; % Sampling Frequency N = 256; % Order Fc = 7200; % Cutoff...
%FIR_8 Returns a discrete-time filter object. % MATLAB Code % Generated by MATLAB(R) 9.4 and DSP System Toolbox 9.6. % Generated on: 09-Apr-2019 11:22:46 % FIR Window Lowpass filter designed using the FIR1 function. % All frequency values are in Hz. ...
(2)在弹出的“FIR(Windows)Design”窗体中,选择“lowpass”选项; (3)在“Lowpass Filter”窗体中,输入FIR滤波器的设计指标:采样频率=20000 Hz、通带频率=5000 Hz、阻带频率=6000 Hz、通带纹波=O.01 dB和阻带纹波=40 dB.如图2所示; (4)确定采用的窗函数类型及阶数(本例采用hamming窗.阶数为27阶); ...
Filter Type(滤波器类型)选项,包括Lowpass(低通)、Highpass(高通)、Bandpass(带通)、Bandstop(带阻)和特殊的FIR滤波器。 Design Method(设计方法)选项,包括IIR滤波器的Butterworth(巴特沃思)法、Chebyshev Type I(切比雪夫I型)法、 Chebyshev Type II(切比雪夫II型) 法、Elliptic(椭圆滤波器)法和FIR滤波器的Equiri...
数字滤波器(Digital filter)是由数字乘法器、加法器和延时单元组成的一种装置。其功能是对输入离散信号的数字代码进行运算处理,以达到改变信号频谱的目的。可认为是一个离散时间系统按预定的算法,将输入离散时间信号转换为所要求的输出离散时间信号的特定功能装置FIR(Finite Impulse Response )由线性系统理论可知,在某种适...
%MATLABCode % Generated by MATLAB(R) 9.1 and theDSPSystem Toolbox 9.3. % Generated on: 19-Aug-2023 21:26:11 % Butterworth Lowpass filter designed using FDESIGN.LOWPASS. % All frequency values are in Hz. Fs = 6400; % Sampling Frequency ...
마감:MATLAB Answer Bot2021년 8월 20일 I want to make a FIB low pass filter, but I didn't have any knowledge about it So I copied and pasted codes and magnitude and frequency don't look good as you can see And I tried 'sound' function, it didnt' have any sound ...