MATLAB 高通滤波器回调函数 - high_pushbutton9_Callback

function high_pushbutton9_Callback(hObject, eventdata, handles) % hObject handle to high_pushbutton9 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global x; global Fs; global tl; global x2;

x1=x; % fp = 3000; % fs = fp-300; % Wp = 2fp/Fs; % Ws = 2fs/Fs; % if(Wp >= 1) % Wp = 0.99; % end % if(Ws >= 1) % Ws = 0.99;
% end fp = get(handles.edit3,'string');
fp = str2double(fp)2; if get(handles.radiobutton1,'value') [n, Wn]=buttord(Wp,Ws, 2, 15); [b, a]=butter(n, Wn,'high'); axes(handles.axes3); [h,w]=freqz(b,a); plot(w/piFs/2,abs(h)); x1=filter(b,a,x1); %璋冪敤鍑芥暟婊ゆ尝 elseif get(handles.radiobutton4,'value') b2=fir1(30, fp/Fs,'high',boxcar(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); elseif get(handles.radiobutton5,'value') b2=fir1(30, fp/Fs,'high', triang(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); elseif get(handles.radiobutton6,'value') b2=fir1(30,fp/Fs,'high', hamming(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); elseif get(handles.radiobutton7,'value') b2=fir1(30, fp/Fs, 'high',hanning(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); elseif get(handles.radiobutton8,'value') b2=fir1(30, fp/Fs, 'high',blackman(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); elseif get(handles.radiobutton9,'value') b2=fir1(30,fp/Fs,'high', kaiser(31)); axes(handles.axes3); [h,w]=freqz(b2, 1,512); plot(w/piFs/2,20log(abs(h))); x1=fftfilt(b2,x1); end; axes(handles.axes5); plot(tl,x1); title('婊ら櫎鍣０鍚庤闊虫椂鍩熸尝褰?'); xlabel('鏃堕棿/s'); N=length(x1); df=Fs/N; w=[0:df:df*(N-1)] - Fs/2; %棰戠巼灏哄害 X=fft(x1); X=fftshift(X); axes(handles.axes6); plot(w,abs(X)/max(abs(X))); axis([-10000,10000,0,1]); title('婊ら櫎鍣０鍚庤闊抽璋?'); xlabel('棰戠巼/Hz'); grid on; x2=x1;