bch2.m

matlab在通信原理中的应用

function varargout = BCH2(varargin)
% BCH2 M-file for BCH2.fig
%      BCH2, by itself, creates a new BCH2 or raises the existing
%      singleton*.
%
%      H = BCH2 returns the handle to a new BCH2 or the handle to
%      the existing singleton*.
%
%      BCH2('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in BCH2.M with the given input arguments.
%
%      BCH2('Property','Value',...) creates a new BCH2 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before BCH2_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to BCH2_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 BCH2

% Last Modified by GUIDE v2.5 01-Apr-2007 10:51:25

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @BCH2_OpeningFcn, ...
                   'gui_OutputFcn',  @BCH2_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 BCH2 is made visible.
function BCH2_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 BCH2 (see VARARGIN)

% Choose default command line output for BCH2
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes BCH2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = BCH2_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;



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



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


% --- 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)
m=str2double(get(findobj('tag','edit3'),'string'));
n=2^m-1;
n1=num2str(n);
set(findobj('tag','text15'),'string',n1);
params=bchpoly(n);
k=params(3,2);
k1=num2str(k);
set(findobj('tag','text16'),'string',k1);
t=params(3,3);
msg=randint(4,k);
msg1=num2str(msg);
set(findobj('tag','text5'),'string',msg1);
code=encode(msg,n,k,'bch/binary');
code1=num2str(code);
set(findobj('tag','text7'),'string',code1);
nosiycode=rem(code+randerr(4,n,1:t),2);
nosiycode1=num2str(nosiycode)
set(findobj('tag','text9'),'string',nosiycode1);
newmsg=decode(nosiycode,n,k,'bch/binary');
newmsg1=num2str(newmsg);
set(findobj('tag','text11'),'string',newmsg1);
[number,ratio]=biterr(newmsg,msg);
ratio1=num2str(ratio);
set(findobj('tag','text13'),'string',ratio);
figure(BCH2);





% --- 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)
set(gcf,'visible','off');
set(jiemian,'visible','on');