【数字信号调制】基于 AM+FM+DSB+SSB实现信号调制解调含Matlab源码

function varargout = SSB(varargin) % AM MATLAB code for AM.fig % AM, by itself, creates a new AM or raises the existing % singleton*. % % H = AM returns the handle to a new AM or the handle to % the existing singleton*. % % AM( ’CALLBACK’ ,hObject,eventData,handles,...) calls the local % function named CALLBACK in AM.M with the given input arguments. % % AM( ’Property’ , ’Value’ ,...) creates a new AM or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before AM_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to AM_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 AM % Last Modified by GUIDE v2.5 12-Jul-2019 17:27:08 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(’gui_Name’, mfilename, ... ’gui_Singleton’, gui_Singleton, ... ’gui_OpeningFcn’, @AM_OpeningFcn, ... ’gui_OutputFcn’, @AM_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 AM is made visible. function AM_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 (see VARARGIN) % Choose default command line output for AM handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes AM wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = AM_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 during object creation, after setting all properties. function axes3_CreateFcn(hObject, eventdata, handles) % hObject handle to axes3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: place code in OpeningFcn to populate axes3 % --- 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) % --- Executes during object creation, after setting all properties. function frame1_CreateFcn(hObject, eventdata, handles) % hObject handle to frame1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % --- Executes during object creation, after setting all properties. function text2_CreateFcn(hObject, eventdata, handles) % hObject handle to text2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % --- Executes when entered data in editable cell(s) in uitable2. function uitable2_CellEditCallback(hObject, eventdata, handles) % hObject handle to uitable2 (see GCBO) % eventdata structure with the following fields (see MATLAB.UI.CONTROL.TABLE) % Indices: row and column indices of the cell(s) edited % PreviousData: previous data for the cell(s) edited % EditData: string(s) entered by the user % NewData: EditData or its converted form set on the Data property. Empty if Data was not changed % Error: error string when failed to convert EditData to appropriate value for Data % handles structure with handles and user data (see GUIDATA) % --- Executes on selection change in listbox3. function listbox3_Callback(hObject, eventdata, handles) % hObject handle to listbox3 (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 listbox3 contents as cell array % contents{get(hObject,’ Value ’)} returns selected item from listbox3 % --- Executes during object creation, after setting all properties. function listbox3_CreateFcn(hObject, eventdata, handles) % hObject handle to listbox3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: listbox 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 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 % --- Executes during object creation, after setting all properties. function edit3_CreateFcn(hObject, eventdata, handles) % hObject handle to edit3 (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 button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) A=str2num(get(handles.edit1,’String’)); % A=2 fm=str2num(get(handles.edit2,’String’)); %f=1,1hz基带信号 fc=str2num(get(handles.edit3,’String’)); %fc=64 hz载波 fs=str2num(get(handles.edit4,’String’)); %fs=1024; dt=1/fs; %采样时间间隔 T=5; %信号时长 t=0:dt:T; mt=sqrt(A)*cos(2*pi*fm*t); %信源 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% s_ssb=real(hilbert(mt).*exp(j*2*pi*fc*t)); B=fm/2; plot(handles.axes1,t,s_ssb,’b-’); %画出SSB信号波形 hold(handles.axes1,’on’) plot(handles.axes1,t,mt,’r--’); %表示mt的波形 xlabel(’t’); % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% [f,sf]=T2F(t,s_ssb); %单边带信号频谱 psf=(abs(sf).^2)/T; %单边带信号功率谱 plot(handles.axes3,f,psf); axis([-2*fc 2*fc 0 max(psf)]); xlabel(’f’); % --- Executes on button press in pushbutton3. function pushbutton3_Callback(hObject, eventdata, handles) % hObject handle to pushbutton3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) close(handles.figure1); % --- Executes during object creation, after setting all properties. function text3_CreateFcn(hObject, eventdata, handles) % hObject handle to text3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called function edit4_Callback(hObject, eventdata, handles) % hObject handle to edit4 (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 edit4 as text % str2double(get(hObject,’ String ’)) returns contents of edit4 as a double % --- Executes during object creation, after setting all properties. function edit4_CreateFcn(hObject, eventdata, handles) % hObject handle to edit4 (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