Noise Probability Density Function in Fixed-Point Systems based on smooth operators - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

Noise Probability Density Function in Fixed-Point Systems based on smooth operators

Résumé

To satisfy cost constraints, application implementation in embed- ded systems requires fixed point arithmetic. Thus, the application defined in floating point arithmetic must be converted into a fixed- point specification. This conversion requires accuracy evaluation to ensure algorithm integrity. Indeed, fixed-point arithmetic generates quantization noises due to the elimination of some bits during a cast operation. These noises propagate through the system and degrade computing accuracy. In this paper, a method based on Generalized Gaussian PDF is presented to model and generate the output noise of the system. The accuracy of the proposed model is evaluated through different experiments.
Fichier principal
Vignette du fichier
opdec.pdf (575.17 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00741824 , version 1 (15-10-2012)

Identifiants

  • HAL Id : hal-00741824 , version 1

Citer

Romuald Rocher, Pascal Scalart. Noise Probability Density Function in Fixed-Point Systems based on smooth operators. DASIP, Oct 2012, Karksruhe, Germany. ⟨hal-00741824⟩
149 Consultations
421 Téléchargements

Partager

Gmail Facebook X LinkedIn More