Algorithmes CORDIC dans MATLAB

Opérations d'algorithmes CORDIC dans MATLAB^®

Les algorithmes qui s’appuient sur CORDIC (COordinate Rotation DIgital Computer) comptent parmi les algorithmes les plus efficaces au niveau hardware, car ils nécessitent uniquement des opérations itératives de décalage et d'ajout. Avec l'algorithme CORDIC, il n’est plus nécessaire d'utiliser des multiplicateurs explicites. Il permet en outre de calculer un grand nombre de fonctions.

Fonctions

`cordicabs`	CORDIC-based absolute value
`cordicacos`	CORDIC-based approximation of inverse cosine
`cordicangle`	CORDIC-based phase angle
`cordicasin`	CORDIC-based approximation of inverse sine
`cordicatan2`	CORDIC-based four quadrant inverse tangent
`cordiccart2pol`	Transform Cartesian coordinates to polar using CORDIC-based approximation
`cordiccexp`	CORDIC-based approximation of complex exponential
`cordiccos`	CORDIC-based approximation of cosine
`fixed.cordicDivide`	Fixed-point divide using CORDIC (depuis R2020b)
`cordicpol2cart`	CORDIC-based approximation of polar-to-Cartesian conversion
`fixed.cordicReciprocal`	Fixed-point reciprocal using CORDIC (depuis R2021b)
`cordicrotate`	Rotate input using CORDIC-based approximation
`cordicsigmoid`	CORDIC-based approximation of sigmoid activation (depuis R2023b)
`cordicsin`	CORDIC-based approximation of sine
`cordicsincos`	CORDIC-based approximation of sine and cosine
`cordicsinhcosh`	CORDIC-based approximation of hyperbolic sine and cosine (depuis R2023b)
`cordicsqrt`	CORDIC-based approximation of square root
`cordictanh`	CORDIC-based hyperbolic tangent

Exemples présentés

Compute Square Root Using CORDIC

Compute square root using a CORDIC kernel algorithm in MATLAB.

Ouvrir le live script

Perform QR Factorization Using CORDIC

Write MATLAB code that works for both floating-point and fixed-point data types. The algorithm used in this example is the QR factorization implemented via CORDIC.

Ouvrir le live script