【信號(hào)去噪】基于小波變換、中值濾波多種算法實(shí)現(xiàn)心電信號(hào)預(yù)處理含Matlab源碼
1 簡(jiǎn)介
【信號(hào)去噪】基于小波變換、中值濾波多種算法實(shí)現(xiàn)心電信號(hào)預(yù)處理含Matlab源碼
2 部分代碼
function varargout = XBLBCS(varargin)% XBLBCS MATLAB code for XBLBCS.fig% ? ? ?XBLBCS, by itself, creates a new XBLBCS or raises the existing% ? ? ?singleton*.%% ? ? ?H = XBLBCS returns the handle to a new XBLBCS or the handle to% ? ? ?the existing singleton*.%% ? ? ?XBLBCS('CALLBACK',hObject,eventData,handles,...) calls the local% ? ? ?function named CALLBACK in XBLBCS.M with the given input arguments.%% ? ? ?XBLBCS('Property','Value',...) creates a new XBLBCS or raises the% ? ? ?existing singleton*. ?Starting from the left, property value pairs are% ? ? ?applied to the GUI before XBLBCS_OpeningFcn gets called. ?An% ? ? ?unrecognized property name or invalid value makes property application% ? ? ?stop. ?All inputs are passed to XBLBCS_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 XBLBCS% Last Modified by GUIDE v2.5 11-Jan-2016 19:29:07% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name', ? ? ? mfilename, ... ? ? ? ? ? ? ? ? ? 'gui_Singleton', ?gui_Singleton, ... ? ? ? ? ? ? ? ? ? 'gui_OpeningFcn', @XBLBCS_OpeningFcn, ... ? ? ? ? ? ? ? ? ? 'gui_OutputFcn', ?@XBLBCS_OutputFcn, ... ? ? ? ? ? ? ? ? ? 'gui_LayoutFcn', ?[] , ... ? ? ? ? ? ? ? ? ? 'gui_Callback', ? []);if nargin && ischar(varargin{1}) ? ?gui_State.gui_Callback = str2func(varargin{1});endif 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 XBLBCS is made visible.function XBLBCS_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 XBLBCS (see VARARGIN)% Choose default command line output for XBLBCShandles.output = hObject;% Update handles structureguidata(hObject, handles);ha=axes('units','normalized','position',[0 0 1 1]);uistack(ha,'down')II=imread('aa6.jpg');%里面的參數(shù)可以是你自己的圖片，把名字連同格式寫進(jìn)去就可以了image(II)colormap grayset(ha,'handlevisibility','off','visible','off');% UIWAIT makes XBLBCS wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.function varargout = XBLBCS_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 structurevarargout{1} = handles.output;% --- Executes on button press in goon_3.function goon_3_Callback(hObject, eventdata, handles)% hObject ? ?handle to goon_3 (see GCBO)% eventdata ?reserved - to be defined in a future version of MATLAB% handles ? ?structure with handles and user data (see GUIDATA)global f0;global Y1;global xd;Ts=0.001;fs=1/Ts;NLen=512;n=0:NLen-1;%陷波器的設(shè)計(jì)apha=-2*cos(2*pi*f0*Ts);beta=0.96;b=[1 apha 1];a=[1 apha*beta beta^2];Y1=dlsim(b,a,xd);%陷波器濾波處理 close(gcf); ? ?JGXS;% --- Executes on button press in exit_6.function exit_6_Callback(hObject, eventdata, handles)% hObject ? ?handle to exit_6 (see GCBO)% eventdata ?reserved - to be defined in a future version of MATLAB% handles ? ?structure with handles and user data (see GUIDATA) close(gcf); ? ?XZLB;% --- Executes when selected object is changed in uipanel2.function uipanel2_SelectionChangeFcn(hObject, eventdata, handles)% hObject ? ?handle to the selected object in uipanel2 % eventdata ?structure with the following fields (see UIBUTTONGROUP)% ?EventName: string 'SelectionChanged' (read only)% ?OldValue: handle of the previously selected object or empty if none was selected% ?NewValue: handle of the currently selected object% handles ? ?structure with handles and user data (see GUIDATA)global f0;tString=get(hObject,'tag');switch tString ? ?case 'X_60' ? ? ? ?f0=60; ? ?case 'X_50' ? ? ? ?f0=50; %進(jìn)行相應(yīng)的操作 ? ?case 'X_Q' ? ? ? ?myvalue=inputdlg('請(qǐng)輸入所需陷波頻率','輸入框'); ? ? ? ?f0=str2double(myvalue);end
3 仿真結(jié)果
4 參考文獻(xiàn)
[1]馬小磊. 基于小波變換的心電信號(hào)預(yù)處理算法研究及Android實(shí)現(xiàn)[D]. 東北大學(xué), 2014.
