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Example

FIR(Finite impulse response) + FFT(Fast Fourier Transform)

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Author: Olexiy Bondar

Last Updated: 2017-12-06

Package Version: 1.0.0.0

Example: 1.0.0.0

Category: Internal MCU modules

Downloaded: 431 times

Not followed.

License: MIT license  

Finite impulse response (FIR) filters is wide using in DSP. here is examlple of low pass filter.
for more information read wiki:
https://en.wikipedia.org/wiki/Finite_impulse_response
this exemple is based on FFT + SIN Gererator
https://libstock.mikroe.com/projects/view/2207/fft-sin-gererator

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Example Blog

no FIR spectrum

no FIR spectrum

no FIR spectrum

View full image
with FIR

with FIR

with FIR: Filter specifications: Filter type : Lowpass Sample Rate : 1000 Hz Passband gain : 1 dB Stopband gain : -60 dB Low band edge : 110 Hz High band edge : 180 Hz

View full image

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