A novel efficient and accurate analytical method for determining the swing of internal nodes in digital filters
| Autor: | S. M. Fakhraei, Ghasem Pasandi, S. Beig Mohammadi, Mohammad Najjarzadegan |
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| Rok vydání: | 2016 |
| Předmět: |
Floating point
02 engineering and technology Swing Fixed point 020202 computer hardware & architecture Interval arithmetic Control theory 0202 electrical engineering electronic engineering information engineering Representation (mathematics) Algorithm Digital filter Affine arithmetic Integer (computer science) Mathematics |
| Zdroj: | ISCAS |
| DOI: | 10.1109/iscas.2016.7539206 |
| Popis: | To implement a floating point system using fixed point representation, it is needed to determine the swing and resolution. In the fixed point representation, swing determines the Integer Bit (IB) and resolution determines the Fraction Bit. Methods for estimation of swing in systems can be divided in to three main categories; analytical methods, simulation-based methods, and semi-analytical methods. Simulation-based methods estimate swing of internal nodes by running a lot of simulations for large amount of inputs. These methods are slow and inaccurate. Interval Arithmetic (IA), Affine Arithmetic (AA), Multi Interval Arithmetic (MIA) and Jackson formula are examples of analytical methods. In these methods, by using mathematical calculations, intervals of signal changes are determined regardless of inputs. These methods usually are fast and accurate, but they are not optimum and the results are overestimated. |
| Databáze: | OpenAIRE |
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