High-performance computing for real-time spectral estimation

Madeira, M. M.; Bellis, S. J.; Beltran, L. A. A.; Gonzalez, J. S.; Nocetti, D. F. G.; Marnane, W. P.; Tokhi, M. O.; Ruano, M. Graça

http://hdl.handle.net/10400.1/5872

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Abstract(s)

This paper presents two separate investigations into the real-time implementation of the modified covariance spectral estimator: one comparing performances on digital signal processors, the TMS320C40, and the recently released ADSP2016x (SHARC); another using application-specific custom circuitry. The advantages and disadvantages of each of these different approaches are reviewed, resulting in the design of a field-programmable gate array/digital signal processor-based high-performance system that combines the hardware and software approaches. In conjunction with pulsed Doppler ultrasound blood-flow detectors, the spectral estimator offers increased sensitivity in the non-invasive detection of arterial disease. (C) 1999 Elsevier Science Ltd. All rights reserved.

Keywords

Architectures Digital signal processors Integrated circuits Parallel processing Real-time Spectral estimation

URI

http://hdl.handle.net/10400.1/5872

Publisher

Elsevier

DOI

http://dx.doi.org/10.1016/S0967-0661(98)00207-X

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