【正文】 ckgroundColor39。BackgroundColor39。 end % Executes during object creation, after setting all properties. function outminus_CreateF(hObject, eventdata, handles) % hObject handle to outminus (see GCBO) % eventdata reserved to be defined in a future version of MATLAB % handles empty handles not created until after all CreateFs called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc amp。), get(0,39。,39。amp。defaultUicontrolBackgroundColor39。white39。 isequal(get(hObject,39。)) set(hObject,39。)。BackgroundColor39。BackgroundColor39。 end % Executes during object creation, after setting all properties. function pointto_CreateF(hObject, eventdata, handles) % hObject handle to pointto (see GCBO) % eventdata reserved to be defined in a future version of MATLAB % handles empty handles not created until after all CreateFs called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc amp。), get(0,39。,39。Tag39。String39。,39。))。 return。 from=str2double(get(,39。String39。Error range!39。 if (i1)0 amp。 else ti(n)=(i)/((i)(i1))。 n=n+1。 %freqence and periodicity for i=1:n1 T(i)=ti(i+1)ti(i)。,39。String39。 end if(==3) set(,39。String39。,num2str(mean(amp(2:n1))))。,num2str(mean(phase)))。 %mean set(,39。String39。,std((from:to))^2)。wavfile39。,filename)。 plot(,(1:length())/Fs,)。,num2str(ysize(1)))。 h=waitbar(0,39。Tag39。String39。,39。))。 return。 to=str2double(get(,39。 f=linspace(0,Fs/2,(tofrom+1)/2)。String39。 set(,39。)。 set(,39。 plot(,f,2*sqrt(Y.*conj(Y)))。 plot(,f,abs(Y).^2)。 xlabel(,39。freqency(Hz)39。)。 ylabel(,39。phase(rad)39。)。 ylabel(,39。2. wav文件輸入由于wav文件是非周期的，故時域分析和頻域分析結(jié)果都是“非周期”。對于非周期的信號，會顯示“非周期”。 17 / 21。由于本次試驗學時有限，自身知識所限，沒有來得及實現(xiàn)。 結(jié)果分析及體會通過以上界面和程序，本設計基本實現(xiàn)了實驗的要求。)。Imaginary39。 ylabel(,39。)。freqency(Hz)39。 xlabel(,39。)。freqency(Hz)39。 plot(,f,real(Y))。,f(I))。String39。,39。非周期39。 [C,I]=max(abs(Y))。))。String39。No wave exist! Please choose a input type!39。),39。 N=str2double(get(findobj(39。caiyangpinlv39。)。string39。 set(,39。 =2。 set(,39。*.wav39。 %s set(,39。,mean((from:to)))。String39。 set(,39。 end set(,39。,1/freq)。非周期39。)。 if (==1||==2||==4) set(,39。 end if ymin(i) ymin=(i)。 ymax=0。 (i)=0 amp。 return。 if from1 | tofrom5。))。 ymax=max([(1) (2)])。No wave exist! Please choose a input type!39。),39。 N=str2double(get(findobj(39。caiyangpinlv39。)。)) set(hObject,39。 isequal(get(hObject,39。white39。defaultUicontrolBackgroundColor39。amp。,39。), get(0,39。 end % Executes during object creation, after setting all properties. function foutfreq_CreateF(hObject, eventdata, handles) % hObject handle to foutfreq (see GCBO) % eventdata reserved to be defined in a future version of MATLAB % handles empty handles not created until after all CreateFs called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc amp。BackgroundColor39。BackgroundColor39。)。)) set(hObject,39。 isequal(get(hObject,39。white39。defaultUicontrolBackgroundColor39。amp。,39。), get(0,39。 end % Executes during object creation, after setting all properties. function outmean_CreateF(hObject, eventdata, handles) % hObject handle to outmean (see GCBO) % eventdata reserved to be defined in a future version of MATLAB % handles empty handles not created until after all CreateFs called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc amp。BackgroundColor39。BackgroundColor39。)。)) set(hObject,39。 isequal(get(hObject,39。white39。defaultUicontrolBackgroundColor39。amp。,39。), get(0,39。 end function outfreq_CreateF(hObject, eventdata, handles) if ispc amp。BackgroundColor39。BackgroundColor39。)。)) set(hObject,39。 isequal(get(hObject,39。white39。defaultUicontrolBackgroundColor39。amp。,39。), get(0,39。 end function edit15_CreateF(hObject, eventdata, handles) if ispc amp。BackgroundColor39。BackgroundColor39。)。)) set(hObject,39。 isequal(get(hObject,39。white39。defaultUicontrolBackgroundColor39。amp