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Article | REF: R1101 V1

Filtering practice - Digital linear filtering

Author: Abdeldjalil OUAHABI

Publication date: January 10, 2021

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1. Basic concepts of digital filtering

1.1 From analog to digital

An analog or continuous-time signal x(t) sampled at a sampling rate T e or sampling frequency Fe=1Te takes the form of the following sequence for t = kT e where k is an integer :

x(k)=x(kTe)
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