【数字调制信号】基于ASK、PSK、MSK、QPSK数字调制信号仿真含Matlab源码

2022-09-10 11:00 作者:Matlab工程师 0人读过 | 我要投稿

1 简介

在简要介绍了Matlab及计算机仿真的基础上,结合ASK(振幅键控),FSK(频移键控),PSK(相移键控)、QPSK调制的相关原理和技术,提出了运用Matlab模拟对振幅键控,频移键控,相移键控调制仿真的方法.

2 部分代码

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 EDITgui_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});endif 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_signalhandles.output = hObject;% Update handles structureguidata(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 structurevarargout{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');endfunction 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');endfunction 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