一、获取代码方式
获取代码方式1：
完整代码已上传我的资源：【滤波器】基于matlab GUI高通+低通+带通+带阻FIR滤波器设计【含Matlab源码 100期】
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二、数字滤波器设计简介(附课题作业报告)
1 设计原理
1.1 滤波器概念
1.2 数字滤波器的系统函数和差分方程
1.3 数字滤波器结构的表示
1.4 数字滤波器的分类
2.1 IIR滤波器与FIR滤波器的分析比较
2.2 FIR滤波器的原理
3 FIR滤波器的仿真步骤
三、部分源代码
function varargout = Filter(varargin)% FILTER M-file for Filter.fig%FILTER, by itself, creates a new FILTER or raises the existing%singleton*.%%H = FILTER returns the handle to a new FILTER or the handle to%the existing singleton*.%%FILTER('CALLBACK',hObject,eventData,handles,...) calls the local%function named CALLBACK in FILTER.M with the given input arguments.%%FILTER('Property','Value',...) creates a new FILTER or raises the%existing singleton*. Starting from the left, property value pairs are%applied to the GUI before Filter_OpeningFunction gets called. An%unrecognized property name or invalid value makes property application%stop. All inputs are passed to Filter_OpeningFcn via varargin.%%*See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one%instance to run (singleton)".%% See also: GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help Filter% Last Modified by GUIDE v2.5 03-Jun- 01:02:47% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name', mfilename, ...'gui_Singleton', gui_Singleton, ...'gui_OpeningFcn', @Filter_OpeningFcn, ...'gui_OutputFcn', @Filter_OutputFcn, ...'gui_LayoutFcn', [] , ...'gui_Callback', []);if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});elsegui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before Filter is made visible.function Filter_OpeningFcn(hObject, eventdata, handles, varargin)% This function has no output args, see OutputFcn.% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% varargin command line arguments to Filter (see VARARGIN)% Choose default command line output for Filterhandles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes Filter wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.function varargout = Filter_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT);% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Get default command line output from handles structurevarargout{1} = handles.output;function Fs_Callback(hObject, eventdata, handles)% hObject handle to Fs (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Fs as text% str2double(get(hObject,'String')) returns contents of Fs as a double% --- Executes during object creation, after setting all properties.function Fs_CreateFcn(hObject, eventdata, handles)% hObject handle to Fs (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Fp1_Callback(hObject, eventdata, handles)%检查输入的通带边缘频率是否【0，1】Fs_value=str2double(get(handles.Fs,'String'));Fp1_value=str2double(get(handles.Fp1,'String'));wp1=2*Fp1_value/Fs_value;if(wp1>=1)errordlg('wp1=2*Fp1/Fs, 归一化频率不在【0，1】范围内，请输入正确的参数','错误信息') end% hObject handle to Fp1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Fp1 as text% str2double(get(hObject,'String')) returns contents of Fp1 as a double% --- Executes during object creation, after setting all properties.function Fp1_CreateFcn(hObject, eventdata, handles)% hObject handle to Fp1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Fp2_Callback(hObject, eventdata, handles)%检查输入的通带边缘频率是否【0，1】Fs_value=str2double(get(handles.Fs,'String'));Fp2_value=str2double(get(handles.Fp2,'String'));wp2=2*Fp2_value/Fs_value;if(wp2>=1)errordlg('wp2=2*Fp2/Fs, 归一化频率不在【0，1】范围内，请输入正确的参数','错误信息') end% hObject handle to Fp2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Fp2 as text% str2double(get(hObject,'String')) returns contents of Fp2 as a double% --- Executes during object creation, after setting all properties.function Fp2_CreateFcn(hObject, eventdata, handles)% hObject handle to Fp2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Fs1_Callback(hObject, eventdata, handles)%检查输入的阻带边缘频率是否【0，1】Fs_value=str2double(get(handles.Fs,'String'));Fs1_value=str2double(get(handles.Fs1,'String'));ws1=2*Fs1_value/Fs_value;if(ws1>=1)errordlg('ws1=2*Fs1/Fs, 归一化频率不在【0，1】范围内，请输入正确的参数','错误信息') end% hObject handle to Fs1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Fs1 as text% str2double(get(hObject,'String')) returns contents of Fs1 as a double% --- Executes during object creation, after setting all properties.function Fs1_CreateFcn(hObject, eventdata, handles)% hObject handle to Fs1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Fs2_Callback(hObject, eventdata, handles)%检查输入的阻带边缘频率是否【0，1】Fs_value=str2double(get(handles.Fs,'String'));Fs2_value=str2double(get(handles.Fs2,'String'));ws2=2*Fs2_value/Fs_value;if(ws2>=1)errordlg('ws2=2*Fs2/Fs, 归一化频率不在【0，1】范围内，请输入正确的参数','错误信息') end% hObject handle to Fs2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Fs2 as text% str2double(get(hObject,'String')) returns contents of Fs2 as a double% --- Executes during object creation, after setting all properties.function Fs2_CreateFcn(hObject, eventdata, handles)% hObject handle to Fs2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Rp_Callback(hObject, eventdata, handles)% hObject handle to Rp (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Rp as text% str2double(get(hObject,'String')) returns contents of Rp as a double% --- Executes during object creation, after setting all properties.function Rp_CreateFcn(hObject, eventdata, handles)% hObject handle to Rp (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endfunction Rs_Callback(hObject, eventdata, handles)% hObject handle to Rs (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of Rs as text% str2double(get(hObject,'String')) returns contents of Rs as a double% --- Executes during object creation, after setting all properties.function Rs_CreateFcn(hObject, eventdata, handles)% hObject handle to Rs (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');end% --- Executes on selection change in FilterDesign.function FilterDesign_Callback(hObject, eventdata, handles)AutoRun_value=get(handles.AutoRun,'Value');if(AutoRun_value==1)AutoChoose(handles)end% hObject handle to FilterDesign (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: contents = get(hObject,'String') returns FilterDesign contents as cell array% contents{get(hObject,'Value')} returns selected item from FilterDesign% --- Executes during object creation, after setting all properties.function FilterDesign_CreateFcn(hObject, eventdata, handles)% hObject handle to FilterDesign (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called% Hint: popupmenu controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');end
四、运行结果
五、matlab版本及参考文献
1 matlab版本
a
2 参考文献
[1] 沈再阳.精通MATLAB信号处理[M].清华大学出版社，.
[2]高宝建,彭进业,王琳,潘建寿.信号与系统——使用MATLAB分析与实现[M].清华大学出版社，.
[3]王文光,魏少明,任欣.信号处理与系统分析的MATLAB实现[M].电子工业出版社，.
