How can I make the FFT transform from this sine wave with noise code?

Question

nirma priatama 2014-3-11

0
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https://ww2.mathworks.cn/matlabcentral/answers/121116-how-can-i-make-the-fft-transform-from-this-sine-wave-with-noise-code

回答： Sagie 2014-3-11

Hi, I want to make FFT transform from this sine wave with noise code,

   Fs = 8000;                  
   dt = 1/Fs;                   
   StopTime = 0.06;             
   t = (0:dt:StopTime-dt);     
   A = 4;
   Fc = 60;
   snr = 10;
   x = A*sin(2*pi*Fc*t);
   y = awgn(x,snr);
   plot(t,y);
   xlabel('time (in seconds)');
   title('Signal versus Time');