Title: Algorithmes et m�thodes de calcul: Algorithme Swift CORDIC pour l'application de la transformation discr�te du cosinus (French Edition)
Publisher: Editions Notre Savoir
Publication Date: 2024
Language: French
ISBN 10: 6208038693
ISBN 13: 9786208038694
Binding: Soft cover
Condition: New

About this title

Synopsis

CORDIC, �galement connu sous le nom de m�thode digitale et d'algorithme de Volder. Il s'agit d'un ordinateur num�rique sp�cial pour le calcul a�rien en temps r�el. Il utilise une technique de calcul unique, particuli�rement adapt�e � la r�solution des relations trigonom�triques impliqu�es dans la rotation des coordonn�es planes et la conversion des coordonn�es rectangulaires en coordonn�es polaires. Avec la technologie actuelle et les limitations en mati�re de puissance, de fr�quence de fonctionnement et de consommation d'�nergie, si nous g�n�rons des fonctions trigonom�triques en utilisant un multiplicateur, un additionneur, un diviseur, ces architectures consomment plus de mat�riel et le temps de calcul augmente. Ce processeur r�duit le probl�me de la division et de la multiplication. Dans le processeur CORDIC, nous pouvons calculer les fonctions � l'aide d'un d�caleur, d'un additionneur et d'un soustracteur. � l'heure actuelle, l'algorithme CORDIC est utilis� dans de nombreuses applications telles que le multim�dia, les applications de traitement des signaux num�riques telles que les filtres lisses, le DCT et le FFT, etc. L'algorithme CORDIC a d'abord �t� converti en mat�riel, ce qui a pos� certains probl�mes tels que le facteur d'�chelle, la consommation de temps, etc.

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