HOW TO CREATE AN IIR AND FIR FILTERS WITH MATLAB

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Vlad Buch
Vlad Buch 2020-6-10
Hello! Guys, I'm completely unfamiliar with MATLAB, but I was asked to do this (jinior first task), pls, help me!
I need to create 2 digital filters for filter lengths (5, 15, 20).
  1. Finite Impulse Response Filter - FIR
  2. Infinite Impulse Response Filter - IIR
Initial data:
The signal frequency for all is 1KHz, the interference frequency is 20 KHz;
Signal amplitude 9.
The result should include:
The spectrum of the signal with interference.
Spectrum of the output signal.
Coefficients of the received filters.
Structural diagram of the resulting filters.
Spectra of the signal before filtering and after.
Conclusion on the effectiveness of filters.

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