【数字信号调制】基于matlab GUI AM调制系统【含Matlab源码 2083期】.zip

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % AM modulation with GUI % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function varargout = am_mod(varargin) % Edit the above text to modify the response to help am_mod % Last Modified by GUIDE v2.5 02-Jun-2022 16:43:51 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @am_mod_OpeningFcn, ... 'gui_OutputFcn', @am_mod_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 % --- Executes just before am_mod is made visible. function am_mod_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 am_mod (see VARARGIN) set(handles.carrier,'Value',0.5); set(handles.mod,'Value',0.5); handles.ejex=0:1/1000:.5; axes(handles.axes1) y_m=.5*cos(2*pi*25*handles.ejex)+1; plot(handles.ejex,y_m,'--','Color',[1 0 1]);hold on; y_c=cos(2*pi*100*handles.ejex); y_am=y_m.*y_c; plot(handles.ejex,y_am) hold off; title('AM信号'); ylabel('振幅'); xlabel('时间(s)'); axes(handles.axes2) plotspec(y_am,1/1000); title('光谱'); %zoom on % Choose default command line output for am_mod handles.output = hObject; % Update handles structure guidata(hObject, handles); % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = am_mod_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 slider movement. function mod_Callback(hObject, eventdata, handles) % hObject handle to mod (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,'Value') returns position of slider % get(hObject,'Min') and get(hObject,'Max') to determine range of slider f_m=50*get(hObject,'Value'); f_c=200*get(handles.carrier,'Value'); set(handles.fc,'String',f_c); set(handles.fm,'String',f_m); axes(handles.axes1) y_m=.5*cos(2*pi*f_m*handles.ejex)+1; plot(handles.ejex,y_m,'--','Color',[1 0 0]);hold on; y_c=cos(2*pi*f_c*handles.ejex); y_am=y_m.*y_c; plot(handles.ejex,y_am) hold off; title('AM信号'); ylabel('振幅'); xlabel('时间(s)'); axes(handles.axes2) plotspec(y_am,1/1000) title('光谱'); a=get(handles.zoom,'Value'); if a==1 zoom on; set(handles.zoom,'String','放大'); else zoom off; set(handles.zoom,'String','缩小'); end % --- Executes during object creation, after setting all properties. function mod_CreateFcn(hObject, eventdata, handles) % hObject handle to mod (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: slider controls usually have a light gray background. if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor',[.9 .9 .9]); end % --- Executes on slider movement. function carrier_Callback(hObject, eventdata, handles) % hObject handle to carrier (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,'Value') returns position of slider % get(hObject,'Min') and get(hObject,'Max') to determine range of slider f_c=200*get(hObject,'Value'); f_m=50*get(handles.mod,'Value'); set(handles.fc,'String',f_c); set(handles.fm,'String',f_m); axes(handles.axes1) y_m=.5*cos(2*pi*f_m*handles.ejex)+1; plot(handles.ejex,y_m,'--','Color',[1 0 0]);hold on; y_c=cos(2*pi*f_c*handles.ejex); y_am=y_m.*y_c; plot(handles.ejex,y_am) hold off; title('AM信号'); ylabel('振幅'); xlabel('时间(s)'); axes(handles.axes2) plotspec(y_am,1/1000) title('光谱'); a=get(handles.zoom,'Value'); if a==1 zoom on; set(handles.zoom,'String','放大'); else zoom off; set(handles.zoom,'String','缩小'); end % --- Executes during object creation, after setting all properties. function carrier_CreateFcn(hObject, eventdata, handles) % hObject handle to carrier (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: slider controls usually have a light gray background. if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor',[.9 .9 .9]); end % --- Executes on button press in zoom. function zoom_Callback(hObject, eventdata, handles) % hObject handle to zoom (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hint: get(hObject,'Value') returns toggle state of zoom a=get(hObject,'Value'); if a==1 zoom on; set(handles.zoom,'String','放大'); else zoom off; set(handles.zoom,'String','缩小'); end c % --- Executes on button press in close. function close_Callback(hObject, eventdata, handles) % hObject handle to close (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hint: get(hObject,'Value') returns toggle state of close clc close all