A list,

IIR low pass +FIR high pass signal time domain + spectrum analysis based on MATLAB GUI

Ii. Source code

function varargout = program1(varargin)
% PROGRAM1 MATLAB code for program1.fig
%      PROGRAM1, by itself, creates a new PROGRAM1 or raises the existing
%      singleton*.
%
%      H = PROGRAM1 returns the handle to a new PROGRAM1 or the handle to
%      the existing singleton*.
%
%      PROGRAM1('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in PROGRAM1.M with the given input arguments.
%
%      PROGRAM1('Property'.'Value',...). creates anew PROGRAM1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before program1_OpeningFcn gets called.  An
%      unrecognized property name orinvalid value makes property application % stop. All inputs are passed to program1_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 program1

% Last Modified by GUIDE v2. 5 03-Jan- 2020. 09:14:21

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @program1_OpeningFcn, ...
                   'gui_OutputFcn',  @program1_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 program1 is made visible.
function program1_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 program1 (see VARARGIN)

% Choose default command line output for program1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes program1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);

set(handles.uipanel1,'visible'.'off');
set(handles.uipanel2,'visible'.'off');
% --- Outputs from this function are returned to the command line.
function varargout = program1_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 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 = cellstr(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 && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor'.'white');
end


% --- 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)
cla(handles.axes1,'reset');
cla(handles.axes2,'reset');
cla(handles.axes3,'reset');
axes(handles.axes1);
cla;
        
L=str2num(get(handles.edit1,'String'));
A=str2num(get(handles.edit2,'String'));
f1=str2num(get(handles.edit3,'String'));
f2=str2num(get(handles.edit4,'String'));
Phi=str2num(get(handles.edit5,'String'));
a=str2num(get(handles.edit6,'String'));
Sig=str2num(get(handles.edit7,'String'));
fs=1000;
phi=Phi*pi/180;
popup_sel_index = get(handles.popupmenu1, 'Value');
switch popup_sel_index
    case 1
        t=0:0.001:L;
        y=A*sin(2*pi*f1*t+phi);
        plot(t,y);
        set(gca,'Xlim'[0 1]);
        title('Raw signal');
    case 2
         t=0:0.001:L;
         y=A*square(2*pi*f1*t,a);
         plot(t,y);
         set(gca,'Xlim'[0 1]);
         title('Raw signal');
    case 3
        t=0:0.001:L;
        y=A*sin(2*pi*f1*t)+A*sin(2*pi*f2*t);
        plot(t,y);
        set(gca,'Xlim'[0 1]);
        title('Raw signal');
    case 4
        n=round(1000*L);
        t=linspace(0,L,n);
        y=sqrt(Sig)*randn(1,n);
        plot(t,y);
        set(gca,'Xlim'[0 1]);
        title('Raw signal');
    case 5
        n=round(1000*L);
        t=linspace(0,L,n);
        y=sqrt(Sig)*rand(1,n);
        plot(t,y);
        set(gca,'Xlim'[0 1]);
        title('Raw signal');
end



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (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 edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (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



function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (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 edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double


% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit2 (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



function edit3_Callback(hObject, eventdata, handles)
% hObject    handle to edit3 (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 edit3 as text
%        str2double(get(hObject,'String')) returns contents of edit3 as a double
Copy the code

3. Operation results



Fourth, note

Version: 2014 a