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Conference Papers Year : 2012

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

Abstract

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.
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Dates and versions

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

Identifiers

  • HAL Id : hal-00741824 , version 1

Cite

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