A methodology for evaluating the precision of fixed-point systems

Daniel Menard 1, 2 Olivier Sentieys 2
2 R2D2 - Reconfigurable and Retargetable Digital Devices
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, INRIA Rennes, ENSSAT - École Nationale Supérieure des Sciences Appliquées et de Technologie
Abstract : The minimization of cost, power consumption and time-to-market of DSP applications requires the development of methodologies for the automatic implementation of floating-point algorithms in fixed-point architectures. A new methodology for evaluating the quality of an implementation through the automatic determination of the signal-to-quantization-noise ratio (SQNR) is presented. The modelization of the system at the quantization noise level and the expression of the output noise power is detailed for linear systems. Then, the different phases of the methodology are explained and the ability of our approach to compute the SQNR efficiently is shown through examples.
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https://hal.inria.fr/inria-00482913
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Submitted on : Tuesday, May 11, 2010 - 10:00:04 PM
Last modification on : Friday, November 16, 2018 - 1:24:46 AM

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Daniel Menard, Olivier Sentieys. A methodology for evaluating the precision of fixed-point systems. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002. Proceedings. (ICASSP '02)., May 2002, Orlando, United States. pp.3152-3155, ⟨10.1109/ICASSP.2002.1005356⟩. ⟨inria-00482913⟩

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