tongxin.m

本次实验是无线楼宇数据传输仿真

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

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help tongxin

% Last Modified by GUIDE v2.5 19-May-2006 19:48:26

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @tongxin_OpeningFcn, ...
                   'gui_OutputFcn',  @tongxin_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 tongxin is made visible.


%The building selected is of 20 floors and 100m long.Every 5m there is a 
%partition.Each floor is 5m high.Certainly between two floors there is a 
%wall.
%The wall and the partition are the obstacles that make signal has path 
%loss.We suppose all the path loss is made by the obstacles referred above.
%The path loss is the same as "914 MHz Path Loss Prediction Models for 
%Indoor Wireless Communications in Multifloored Buildings".The path loss of
%this model is accorded with the formula described below.
%The transceiver is "single-chip radio transceiver for the 433/868/915 MHz  
%ISM band" whose Typical Sensitivity is -100dBm and Maximum transmit output 
%power is 10dBm.
%We simulink the system to check if we can commmunicate wirelessly between 
%any two sites.What's more, we can  plot the curve of the path loss varying
%with the distance d.
%The fomular is PL(d)[dB]=20.0*log10(4*pi*d/ranta)+p*AF(soft partition)[dB]
%+q*AF(concrete wall)[dB]
%把整栋楼看成一个二维平面，收发端看成是坐标系里有x轴y轴坐标值来描述的点，依此仿真
%这两点间能否进行通信
function  f=my(x0,y0,x1,y1)
Pmax=-20;%Maximum transmit output power is 10dBm,that is -20dB
Pmin=-130;%Typical Sensitivity is -100dBm,that is -130dB
ranta=0.328;%电磁波长ranta=3*10^8/(914*10^6)=0.328
AF1=1.39;%the soft partition Attenuation Factor is 1.39dB
AF2=2.38;%the concrete wall Attenuation Factor is 2.38dB
d1=abs(y1-y0);%收发之间的垂直距离。依实际,y的值都是5的倍数
d2=abs(x1-x0);%收发之间的水平距离
d=sqrt(d1^2+d2^2);%收发端的距离
p=floor(d2/5);%收发之间的软隔墙数
q=d1/5;%收发之间的混凝土墙数
PL=20.0*log10(4*pi*d/ranta)+p*AF1+q*AF2;%收发之间的路径损耗
Pr=Pmax-PL;%收端的功率
%检测收发端能否进行通信
if Pr>=-130
    f=1;%代表能通信
else
    f=0;%代表不能通信
end


function tongxin_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 tongxin (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = tongxin_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 user data (see GUIDATA)


x0=str2num(get(handles.edit1,'String'));
y0=str2num(get(handles.edit2,'String'));
x1=str2num(get(handles.edit3,'String'));
y1=str2num(get(handles.edit4,'String'));
f=my(x0,y0,x1,y1)
set(handles.edit5,'String',f);


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


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


function edit5_Callback(hObject, eventdata, handles)
% hObject    handle to edit5 (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 edit5 as text
%        str2double(get(hObject,'String')) returns contents of edit5 as a double


% --- Executes during object creation, after setting all properties.
function edit5_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit5 (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 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)

ranta=0.328;%电磁波长ranta=3*10^8/(914*10^6)=0.328
AF2=2.38;%the concrete wall Attenuation Factor is 2.38dB
q=0:20;%依楼层数的混凝土墙数
d=q*5;%隔的楼层数决定距离
PL=20.0*log10(4*pi*d/ranta+eps)+q*AF2;%收发之间的路径损耗
plot(q,PL)
axis([0,20,min(PL),max(PL)])
xlabel('混凝土墙数')
ylabel('衰减功率随混凝土墙数的变化（dB）')

% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


ranta=0.328;%电磁波长ranta=3*10^8/(914*10^6)=0.328
AF1=1.39;%the soft partition Attenuation Factor is 1.39dB
p=0:20;%软隔层数
d=p*5;%软隔层数决定距离
PL=20.0*log10(4*pi*d/ranta+eps)+p*AF1;%收发之间的路径损耗
plot(p,PL)
axis([0,20,min(PL),max(PL)])
xlabel('软隔层数')
ylabel('衰减功率随软隔层数的变化（dB）')


% --- Executes during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to axes1 (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 axes1