【数字信号调制】基于matlab GUI数字信号调制仿真系统【含Matlab源码 336期】.zip

function varargout = display_signal(varargin) % DISPLAY_SIGNAL MATLAB code for display_signal.fig % DISPLAY_SIGNAL, by itself, creates a new DISPLAY_SIGNAL or raises the existing % singleton*. % % H = DISPLAY_SIGNAL returns the handle to a new DISPLAY_SIGNAL or the handle to % the existing singleton*. % % DISPLAY_SIGNAL('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in DISPLAY_SIGNAL.M with the given input arguments. % % DISPLAY_SIGNAL('Property','Value',...) creates a new DISPLAY_SIGNAL or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before display_signal_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to display_signal_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 display_signal % Last Modified by GUIDE v2.5 20-Dec-2011 17:01:23 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @display_signal_OpeningFcn, ... 'gui_OutputFcn', @display_signal_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 display_signal is made visible. function display_signal_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 display_signal (see VARARGIN) % Choose default command line output for display_signal handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes display_signal wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = display_signal_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 type. function type_Callback(hObject, eventdata, handles) % hObject handle to type (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 type contents as cell array % contents{get(hObject,'Value')} returns selected item from type % --- Executes during object creation, after setting all properties. function type_CreateFcn(hObject, eventdata, handles) % hObject handle to type (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 function Fb_Callback(hObject, eventdata, handles) % hObject handle to Fb (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 Fb as text % str2double(get(hObject,'String')) returns contents of Fb as a double % --- Executes during object creation, after setting all properties. function Fb_CreateFcn(hObject, eventdata, handles) % hObject handle to Fb (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 Fc_Callback(hObject, eventdata, handles) % hObject handle to Fc (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 Fc as text % str2double(get(hObject,'String')) returns contents of Fc as a double % --- Executes during object creation, after setting all properties. function Fc_CreateFcn(hObject, eventdata, handles) % hObject handle to Fc (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 Bit_Callback(hObject, eventdata, handles) % hObject handle to Bit (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 Bit as text % str2double(get(hObject,'String')) returns contents of Bit as a double % --- Executes during object creation, after setting all properties. function Bit_CreateFcn(hObject, eventdata, handles) % hObject handle to Bit (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) tempobj=findobj(gcbf,'tag','type'); modu_type=get(tempobj,'value'); fc=eval(get(handles.Fc,'String')); %可选参数设置 B=str2double(get(handles.Fb,'String')); DisBit=str2double(get(handles.Bit,'String')); switch(modu_type) case 1 nper=B/fc; %一个码元中所包含的载波周期数 nsamp=128; %过采样率 fs=nsamp*B; %采样率 Ts=1/fs; %采样周期 NumBit=1024; %数据位数 %数字基带信号产生 Data=randint(1,NumBit); NumSample=NumBit*nsamp; %总采样点数 signal=zeros(1,NumSample); start=1; for i=1:NumBit if(Data(i)) signal(start:start+nsamp-1)=1; end start=start+nsamp; end t=0:Ts:Ts*(NumSample-1); ASK_signal=signal.*sin(2*pi*fc*t); axes(handles.time_axes) plot(t(1:DisBit*nsamp),ASK_signal(1:DisBit*nsamp));grid on; ylabel('信号幅度'); % xlabel('时间/s');