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1、(一) 主程序变量说明：输入变量：zo 传输线特性阻抗zl 传输线终端负载阻抗Er 传输线介电常数f 传输电磁波的频率由输入变量计算得出的变量：w 传输电磁波的数字角频率len 传输电磁波的相波长beita 相移常数gama 传输线个点反射系数复值gamal 传输线终端反射系数的模rou 驻波系数k 行波系数Zi 传输线各点输入阻抗的复值Ui 传输线各点输入电压的复值Uo 传输线各点输出电压的复值Uit 传输线各点输入电压的瞬时值Uot 传输线各点输出电压的瞬时值Ii 传输线各点输入电流的复值Io 传输线各点输出电流的复值Is 传输线各点合成电流的复值Us 传输线各点合成电压的复值Ist 传输
2、线各点合成电流的瞬时值Ust 传输线各点合成电压的瞬时值ph 传输线各点合成电压的相位(二) 主程序流程说明：本程序的界面中共有三个输入编辑框，三个输出编辑框和五个波形显示窗口，分 别用来输入：传输线特性阻抗 Z0、传输线终端负载阻抗 ZL、传输的电磁波的频率 f、传输 线传输介质的相对介电常数 r；输出：传输线的终端反射系数 L、行波系数 、驻波系 数 K；具体的程序思路如下： 1.由输入编辑框获得用户输入的 Z0、ZL、f 和 r； 2.在“开始”按钮的 callback 函数中进行运算，并控制各个 axis 的显示； 3.图形的动态显示由一个 while 循环实现，并由全局标记变量 fl
3、ag 控制； 4.在“停止”按钮的 callback 函数中令 flag = 1，while 循环跳出。 (三) 程序运行效果 1.行波演示 中端接匹配负载zo = zl = 502.驻波演示 1)终端短路zo = 50zl = 02)终端开路zo = 50zl = inf3)终端接纯电抗负载zo = 50zl = X * j3.行驻波演示(四) 主程序代码 function varargout = StatusAnaly(varargin)%*% % Copyright (C), 2009-2012,Lyric % % FileName: StatusAnaly.m % % Author:
4、Lyric % % Version: 1.0 % % Date: 2010-05-11 % %*% STATUSANALY M-file for StatusAnaly.fig % STATUSANALY, by itself, creates a new STATUSANALY or raises the existing % singleton*. % % H = STATUSANALY returns the handle to a new STATUSANALY or the handle to % the existing singleton*. % % STATUSANALY(CA
5、LLBACK,hObject,eventData,handles,.) calls the local % function named CALLBACK in STATUSANALY.M with the given input arguments. % % STATUSANALY(Property,Value,.) creates a new STATUSANALY or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before
6、 StatusAnaly_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to StatusAnaly_OpeningFcn via varargin. % % *See GUI Options on GUIDEs Tools menu. Choose “GUI allows only one % instance to run (singleton)“. % % See also:
7、GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help StatusAnaly% Last Modified by GUIDE v2.5 11-May-2010 14:30:20% Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct(gui_Name, mfilename, .gui_Singleton, gui_Singleton, .gui_OpeningFcn, StatusAnaly
8、_OpeningFcn, .gui_OutputFcn, StatusAnaly_OutputFcn, .gui_LayoutFcn, , .gui_Callback, ); if nargin endif nargoutvarargout1:nargout = gui_mainfcn(gui_State, varargin:); elsegui_mainfcn(gui_State, varargin:); end % End initialization code - DO NOT EDIT% - Executes just before StatusAnaly is made visibl
9、e. function StatusAnaly_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 l
10、ine arguments to StatusAnaly (see VARARGIN)% Choose default command line output for StatusAnaly handles.output = hObject;% Update handles structure guidata(hObject, handles);% UIWAIT makes StatusAnaly wait for user response (see UIRESUME) % uiwait(handles.figure1);% - Outputs from this function are
11、returned to the command line.function varargout = StatusAnaly_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 us
12、er data (see GUIDATA)% Get default command line output from handles structure varargout1 = handles.output;function edit_zo_Callback(hObject, eventdata, handles) % hObject handle to edit_zo (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles
13、and user data (see GUIDATA)% Hints: get(hObject,String) returns contents of edit_zo as text % str2double(get(hObject,String) returns contents of edit_zo as a double% - Executes during object creation, after setting all properties. function edit_zo_CreateFcn(hObject, eventdata, handles) % hObject han
14、dle to edit_zo (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 endfunction edit_zl_Callback(hObject, eventdata, handles) % hObject handle to edit_zl (see GCBO) % eventdata reserved - to be defined in a future version of MAT
