使用Matlab实现了FIR与IIR滤波器

源代码在线查看: untitled2.m

软件大小: 52 K
上传用户: baorong216
关键词: Matlab FIR IIR 滤波器
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相关代码

				function varargout = untitled2(varargin)
				% UNTITLED2 M-file for untitled2.fig
				%      UNTITLED2, by itself, creates a new UNTITLED2 or raises the existing
				%      singleton*.
				%
				%      H = UNTITLED2 returns the handle to a new UNTITLED2 or the handle to
				%      the existing singleton*.
				%
				%      UNTITLED2('CALLBACK',hObject,eventData,handles,...) calls the local
				%      function named CALLBACK in UNTITLED2.M with the given input arguments.
				%
				%      UNTITLED2('Property','Value',...) creates a new UNTITLED2 or raises the
				%      existing singleton*.  Starting from the left, property value pairs are
				%      applied to the GUI before untitled2_OpeningFunction gets called.  An
				%      unrecognized property name or invalid value makes property application
				%      stop.  All inputs are passed to untitled2_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
				
				% Copyright 2002-2003 The MathWorks, Inc.
				
				% Edit the above text to modify the response to help untitled2
				
				% Last Modified by GUIDE v2.5 08-Dec-2003 14:47:39
				
				% Begin initialization code - DO NOT EDIT
				gui_Singleton = 1;
				gui_State = struct('gui_Name',       mfilename, ...
				                   'gui_Singleton',  gui_Singleton, ...
				                   'gui_OpeningFcn', @untitled2_OpeningFcn, ...
				                   'gui_OutputFcn',  @untitled2_OutputFcn, ...
				                   'gui_LayoutFcn',  [] , ...
				                   'gui_Callback',   []);
				if nargin && ischar(varargin{1})
				    gui_State.gui_Callback = str2func(varargin{1});
				end
				
				if nargout
				    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
				else
				    gui_mainfcn(gui_State, varargin{:});
				end
				% End initialization code - DO NOT EDIT
				
				% --- Executes just before untitled2 is made visible.
				function untitled2_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 untitled2 (see VARARGIN)
				
				% Choose default command line output for untitled2
				handles.output = hObject;
				
				% Update handles structure
				guidata(hObject, handles);
				
				% This sets up the initial plot - only do when we are invisible
				% so window can get raised using untitled2.
				if strcmp(get(hObject,'Visible'),'off')
				    plot(rand(5));
				end
				
				% UIWAIT makes untitled2 wait for user response (see UIRESUME)
				% uiwait(handles.figure1);
				
				
				% --- Outputs from this function are returned to the command line.
				function varargout = untitled2_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 structure
				varargout{1} = handles.output;
				
				% --- Executes on button press in pushbutton1.
				function pushbutton1_Callback(hObject, eventdata, handles)
				% hObject    handle to pushbutton1 (see GCBO)
				% eventdata  reserved - to be defined in a future version of MATLAB
				% handles    structure with handles and user data (see GUIDATA)
				axes(handles.axes1);
				cla;
				
				popup_sel_index = get(handles.popupmenu1, 'Value');
				switch popup_sel_index
				    case 1
				        plot(rand(5));
				    case 2
				        plot(sin(1:0.01:25.99));
				    case 3
				        bar(1:.5:10);
				    case 4
				        plot(membrane);
				    case 5
				        surf(peaks);
				end
				
				
				% --------------------------------------------------------------------
				function FileMenu_Callback(hObject, eventdata, handles)
				% hObject    handle to FileMenu (see GCBO)
				% eventdata  reserved - to be defined in a future version of MATLAB
				% handles    structure with handles and user data (see GUIDATA)
				
				
				% --------------------------------------------------------------------
				function OpenMenuItem_Callback(hObject, eventdata, handles)
				% hObject    handle to OpenMenuItem (see GCBO)
				% eventdata  reserved - to be defined in a future version of MATLAB
				% handles    structure with handles and user data (see GUIDATA)
				file = uigetfile('*.fig');
				if ~isequal(file, 0)
				    open(file);
				end
				
				% --------------------------------------------------------------------
				function PrintMenuItem_Callback(hObject, eventdata, handles)
				% hObject    handle to PrintMenuItem (see GCBO)
				% eventdata  reserved - to be defined in a future version of MATLAB
				% handles    structure with handles and user data (see GUIDATA)
				printdlg(handles.figure1)
				
				% --------------------------------------------------------------------
				function CloseMenuItem_Callback(hObject, eventdata, handles)
				% hObject    handle to CloseMenuItem (see GCBO)
				% eventdata  reserved - to be defined in a future version of MATLAB
				% handles    structure with handles and user data (see GUIDATA)
				selection = questdlg(['Close ' get(handles.figure1,'Name') '?'],...
				                     ['Close ' get(handles.figure1,'Name') '...'],...
				                     'Yes','No','Yes');
				if strcmp(selection,'No')
				    return;
				end
				
				delete(handles.figure1)
				
				
				% --- Executes on selection change in popupmenu1.
				function popupmenu1_Callback(hObject, eventdata, handles)
				% hObject    handle to popupmenu1 (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 popupmenu1 contents as cell array
				%        contents{get(hObject,'Value')} returns selected item from popupmenu1
				
				
				% --- Executes during object creation, after setting all properties.
				function popupmenu1_CreateFcn(hObject, eventdata, handles)
				% hObject    handle to popupmenu1 (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
				    set(hObject,'BackgroundColor','white');
				else
				    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
				end
				
				set(hObject, 'String', {'plot(rand(5))', 'plot(sin(1:0.01:25))', 'bar(1:.5:10)', 'plot(membrane)', 'surf(peaks)'});
				
							

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