【数字信号调制】基于BPSK实现信号调制和解调含Matlab源码

1 简介

本文对BPSK调制和解调方法进行初步的探讨,并提出了用CPLD.FPGA和DSP实现BPSK调制和解调的方法和算法,着重对BPSK算法进行介绍,并用程序进行模拟仿真和验证.对研制和了解BPSK调制解调器具有一定的参考意义.

2 部分代码

function varargout = GUI_BPSK(varargin)
% GUI_BPSK MATLAB code for GUI_BPSK.fig
% GUI_BPSK, by itself, creates a new GUI_BPSK or raises the existing
% singleton*.
%
% H = GUI_BPSK returns the handle to a new GUI_BPSK or the handle to
% the existing singleton*.
%
% GUI_BPSK('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in GUI_BPSK.M with the given input arguments.
%
% GUI_BPSK('Property','Value',...) creates a new GUI_BPSK or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before GUI_BPSK_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to GUI_BPSK_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 GUI_BPSK
% Last Modified by GUIDE v2.5 03-Dec-2018 19:45:43
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @GUI_BPSK_OpeningFcn, ...
'gui_OutputFcn', @GUI_BPSK_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 GUI_BPSK is made visible.
function GUI_BPSK_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 GUI_BPSK (see VARARGIN)
% Choose default command line output for GUI_BPSK
handles.output = hObject;
s=round(rand(1,100)); %生成二进制基带数据并画出基带信号图
N=1:100;
%figure(1);subplot(311);stem(N,s);title('基带信号');grid on;

3 仿真结果

4 参考文献

[1]袁拿单. 数字信号的 BPSK 调制和解调[J]. 无线电技术（上海）, 2004(32):14.

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