%priklady na DTFS = DFT = FFT

%vstup signalu
SIGSIZE=64
n=0:1:SIGSIZE-1
%fnc1=1-abs(2*n/SIGSIZE-1)
fnc1=zeros(SIGSIZE,1);
fnc1(1:SIGSIZE/8)=ones(SIGSIZE/8,1)

%vykreslime povodny signal
figure('Name','DTFS');grid on ;hold on;
%plot(n,fnc1,'Color','blue');
stem(n,fnc1,'-ob')
freq_signal=fft(fnc1)
stem(n,freq_signal,'-or')
%rekonstrukcia signalu a vykreslenie
rekon_signal=ifft(freq_signal)
stem(n,rekon_signal,'-og')
return