Designing efficient residue arithmetic based VLSI correlators


Deodhar, A. A., Bhurdwaj, M., Clarke, C. T. and Srikanthan, T., 1998. Designing efficient residue arithmetic based VLSI correlators. In: IEEE International Conference on Acoustics, Speech and Signal Processing, 1998-03-12 - 1998-03-15, Seattle, WA.

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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


Item Type Conference or Workshop Items (Paper)
CreatorsDeodhar, A. A., Bhurdwaj, M., Clarke, C. T. and Srikanthan, T.
Uncontrolled Keywordsradioastronomy,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
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
ID Code15543
Additional InformationVol 5.


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