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Memorias de investigación
Artículos en revistas:
Dynamic range and round-off noise estimation of fixed-point systems with control-flow structures
Año:2016
Áreas de investigación
  • Procesado y análisis de la señal
Datos
Descripción
When implementing digital systems on FPGAs, fixed-point arithmetic achieves improvements in area, power and operational frequency at the cost of having less accurate numerical results. To ensure the validity of the implementation, we need to verify that the numerical errors are constrained to the specified boundaries. However, modern automated analytical approaches for modelling the effects of Round-Off Noise (RON) are constrained by the type of operations they can model accurately. Control-Flow Structures (CFS) are one of the current obstacles in their applicability, as no analytical method has a direct way of dealing with them. In this paper we propose an approach based on Statistical Affine Arithmetic that is capable of modelling accurately the signal and RON in systems with CFS. Our approach adapts automatically to the structure of the design, unrolls the loops dynamically and is highly parallelizable. The experimental results show very accurate results (with variance deviations from the reference between 0.01\% and 3.37\%) in manageable times.
Internacional
Si
JCR del ISI
Si
Título de la revista
Ieee Transactions on Circuits And Systems I-Regular Papers
ISSN
1549-8328
Factor de impacto JCR
2,303
Información de impacto
Datos JCR del año 2013
Volumen
DOI
Número de revista
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Participantes
  • Autor: Enrique Sedano Algarabel (UPM)
  • Autor: Juan Antonio Lopez Martin (UPM)
  • Autor: Carlos Carreras Vaquer (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Centro de I+d+i en Procesado de la Información y Telecomunicaciones
  • Departamento: Ingeniería Electrónica
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