Universal hardware for systems with acceptable representations as low order polynomials

Ariel Burg, Osnat Keren

Research output: Contribution to journalArticlepeer-review


This paper presents a novel hardware architecture for adaptive systems whose exact specification is unknown. The architecture is suitable for linear and nonlinear systems whose inputs are real or complex signals (variables), and that have an acceptable representation as low order polynomials in these variables. The implementation is based on using an a priori selected subset of Walsh spectral coefficients. The proposed architecture can acquire its target functionality and adapt itself to changing environments even if the number of variables, their order and precision are unknown in advance. This is in contrast to conventional multiply-and-accumulate (MAC) based architectures where this information must be determined before the design and implementation of the system. In this context (of systems whose functionality is unknown), the delay and the implementation cost of the proposed architecture is significantly lower than MAC-based solutions.

Original languageEnglish
Article number6845373
Pages (from-to)2878-2887
Number of pages10
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Issue number10
StatePublished - 1 Oct 2014

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  • Adaptive hardware
  • Walsh spectrum
  • computer arithmetic
  • non-linear system


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