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Tout d'abord, la fonction du filtre
Loop function: make the signal of a certain frequency band pass smoothly and filtre out the signal of other frequency band, so it is actually a frequency selection loop. Filtre is a very important loop in weak signal measurement, and analog filtre is almost indispensable in various signal processing. The signal below is low pass filtreed.
Second, the role of the filtre
1. Séparez le signal et le bruit utiles, améliorez le rapport anti-interférence et bruit du signal.
2. Filtre uninteresting frequency components to improve analysis accuracy.
3. Séparez les composants à fréquence unique des composants à fréquence complexe.
Mainly used to filtre interference signals. Filtres are often used to increase filtreing and before sampling signals while amplifying weak signals.
Loop function: make the signal of a certain frequency band pass smoothly and filtre out the signal of other frequency band, so it is actually a frequency selection loop. Filtre is a very important loop in weak signal measurement, and analog filtre is almost indispensable in various signal processing. The signal below is low pass filtreed.
Second, the role of the filtre
1. Séparez le signal et le bruit utiles, améliorez le rapport anti-interférence et bruit du signal.
2. Filtre uninteresting frequency components to improve analysis accuracy.
3. Séparez les composants à fréquence unique des composants à fréquence complexe.
Mainly used to filtre interference signals. Filtres are often used to increase filtreing and before sampling signals while amplifying weak signals.
