Designing efficient residue arithmetic based VLSI correlators

A A Deodhar, M Bhurdwaj, Christopher T Clarke, T Srikanthan

Research output: Contribution to conferencePaper

Abstract

The most important reason for the lack of commercial residue arithmetic (RA) based systems is not the “slow” and area consuming reverse conversion, but the absence of research that explores the system-level trade-offs of such arithmetic in actual VLSI implementations. Such system-level issues are-choice of the moduli set, effect of moduli imbalance on resulting VLSI implementation, choice of the reverse and forward convertors, use of lookup versus computation for modular operations, system characteristics that indicate RA suitability and finally, typical VLSI area and performance figures. This paper explains these concerns by presenting novel RA architectures for VLSI correlators employed in radioastronomy and ultrasonic blood flow measurement. A state-of-the-art, high performance (80-100 MHz), RA-based correlator ASIC was successfully fabricated as a result of this research

Conference

ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing
CountryUSA United States
CitySeattle, WA
Period12/03/9815/03/98

Fingerprint

Correlators
Flow measurement
Application specific integrated circuits
Blood
Ultrasonics

Keywords

  • radioastronomy
  • digital signal processing chips
  • reverse convertor
  • volume measurement
  • forward convertor
  • moduli imbalance effect
  • lookup
  • residue arithmetic architecture
  • biomedical ultrasonics
  • area
  • performance
  • flowmeters
  • biomedical equipment
  • moduli set
  • 80 to 100 MHz
  • residue number systems
  • modular operations
  • VLSI
  • ASIC
  • correlators
  • ultrasonic blood flow measurement
  • ultrasonic measurement
  • blood flow measurement
  • application specific integrated circuits
  • VLSI correlators
  • system-level trade-offs

Cite this

Deodhar, A. A., Bhurdwaj, M., Clarke, C. T., & Srikanthan, T. (1998). Designing efficient residue arithmetic based VLSI correlators. 3021-3024. Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing, Seattle, WA, USA United States.DOI: 10.1109/ICASSP.1998.678162

Designing efficient residue arithmetic based VLSI correlators. / Deodhar, A A; Bhurdwaj, M; Clarke, Christopher T; Srikanthan, T.

1998. 3021-3024 Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing, Seattle, WA, USA United States.

Research output: Contribution to conferencePaper

Deodhar, AA, Bhurdwaj, M, Clarke, CT & Srikanthan, T 1998, 'Designing efficient residue arithmetic based VLSI correlators' Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing, Seattle, WA, USA United States, 12/03/98 - 15/03/98, pp. 3021-3024. DOI: 10.1109/ICASSP.1998.678162
Deodhar AA, Bhurdwaj M, Clarke CT, Srikanthan T. Designing efficient residue arithmetic based VLSI correlators. 1998. Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing, Seattle, WA, USA United States. Available from, DOI: 10.1109/ICASSP.1998.678162
Deodhar, A A ; Bhurdwaj, M ; Clarke, Christopher T ; Srikanthan, T. / Designing efficient residue arithmetic based VLSI correlators. Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing, Seattle, WA, USA United States.4 p.
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