R00KIE
Full Member level 2
I have a vector V with data sampled at a constant frequency F, the sampled data is a square wave wich duty-cycle and frequency change (result of sigma-delta modulation).
I know that when i perform the FFT i will get a spike at the same frequency of the signal i have at the input plus noise.
What i need to do and i don't know how is after performing the FFT to remove the spike that results of the signal and integrate the noise in the audio band.
could you please tell me how to do that?
PS
I also have the simulink model that generates the data, so i don't really care where this is done Matlab or Simulink as long as the result is the same.
I know that when i perform the FFT i will get a spike at the same frequency of the signal i have at the input plus noise.
What i need to do and i don't know how is after performing the FFT to remove the spike that results of the signal and integrate the noise in the audio band.
could you please tell me how to do that?
PS
I also have the simulink model that generates the data, so i don't really care where this is done Matlab or Simulink as long as the result is the same.