資源簡介
DQPSK 調制解調技術是在 QPSK 基礎上發展起來的一種技術,其在發射方
采用差分編碼, 對原來的傳遞信息碼進行一次相對編碼, 利用載波相位的相對
變化來表示傳輸信息。主要任務是研究數字信號調制技術中的四進制數字信號的
調制調解,熟練掌握差分四相相移鍵控(DQPSK)在信號傳輸中的應用,以及其性
能特點。然后著重對四進制數字信號的調制調解進行研究,重點掌握其中差分四
相相移鍵控(DQPSK)的原理,并對其在 MATLAB 平臺進行設計與仿真

代碼片段和文件信息
function?varargout?=?DQPSK(varargin)
%?DQPSK?MATLAB?code?for?DQPSK.fig
%??????DQPSK?by?itself?creates?a?new?DQPSK?or?raises?the?existing
%??????singleton*.
%
%??????H?=?DQPSK?returns?the?handle?to?a?new?DQPSK?or?the?handle?to
%??????the?existing?singleton*.
%
%??????DQPSK(‘CALLBACK‘hobjecteventDatahandles...)?calls?the?local
%??????function?named?CALLBACK?in?DQPSK.M?with?the?given?input?arguments.
%
%??????DQPSK(‘Property‘‘Value‘...)?creates?a?new?DQPSK?or?raises?the
%??????existing?singleton*.??Starting?from?the?left?property?value?pairs?are
%??????applied?to?the?GUI?before?DQPSK_OpeningFcn?gets?called.??An
%??????unrecognized?property?name?or?invalid?value?makes?property?application
%??????stop.??All?inputs?are?passed?to?DQPSK_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?DQPSK
%?Last?Modified?by?GUIDE?v2.5?30-May-2018?13:20:21
%?Begin?initialization?code?-?DO?NOT?EDIT
gui_Singleton?=?1;
gui_State?=?struct(‘gui_Name‘???????mfilename?...
???????????????????‘gui_Singleton‘??gui_Singleton?...
???????????????????‘gui_OpeningFcn‘?@DQPSK_OpeningFcn?...
???????????????????‘gui_OutputFcn‘??@DQPSK_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?DQPSK?is?made?visible.
function?DQPSK_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?DQPSK?(see?VARARGIN)
%?Choose?default?command?line?output?for?DQPSK
handles.output?=?hobject;
%?Update?handles?structure
guidata(hobject?handles);
%?UIWAIT?makes?DQPSK?wait?for?user?response?(see?UIRESUME)
%?uiwait(handles.figure1);
%?---?Outputs?from?this?function?are?returned?to?the?command?line.
function?varargout?=?DQPSK_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?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?use
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????24211??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\代碼\DQPSK.fig
?????文件??????26421??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\代碼\DQPSK.m
?????文件???????4036??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\代碼\基于MATLAB的DQPSK調制解調器.m
?????文件??????30324??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\論文\任務書與開題報告\1、任務書.doc
?????文件??????43520??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\論文\任務書與開題報告\2、開題報告.doc
?????文件?????124069??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\論文\小論文\小論文.docx
?????文件?????842053??2018-10-15?17:13??DQPSK?調制解調器MATLAB實現\論文\答辯PPT\答辯PPT.pptx
?????文件????2526484??2018-10-15?17:13??DQPSK?調制解調器MATLAB實現\論文\論文定稿\08_0807703_20143520_LW.docx
?????文件????2479644??2018-10-15?17:12??DQPSK?調制解調器MATLAB實現\論文\論文定稿\08_0807703_20143520_LW.pdf
?????目錄??????????0??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\論文\任務書與開題報告
?????目錄??????????0??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\論文\小論文
?????目錄??????????0??2018-10-15?17:13??DQPSK?調制解調器MATLAB實現\論文\答辯PPT
?????目錄??????????0??2018-10-15?17:14??DQPSK?調制解調器MATLAB實現\論文\論文定稿
?????目錄??????????0??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現\代碼
?????目錄??????????0??2018-10-15?17:14??DQPSK?調制解調器MATLAB實現\論文
?????目錄??????????0??2018-10-15?17:10??DQPSK?調制解調器MATLAB實現
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??????????????6100762????????????????????16
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