All-digital oversampled front-end sensors

All digital signal processing (DSP) circuits use analog front-end anti-aliasing filters to process sensor inputs. These analog filters have a number of disadvantages with respect to cost, power, stability, and ease of integration in VLSI. This paper proposes the use of all-digital oversampling front...

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Bibliographic Details
Published in:IEEE signal processing letters 1996-02, Vol.3 (2), p.38-39
Main Authors: Romdhane, M.S.B., Madisetti, V.K.
Format: Article
Language:English
Subjects:
Circuit stability
Costs
Delay
Digital filters
Digital signal processing
Laser tuning
Least squares approximation
Modems
Narrowband
Very large scale integration
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Summary:All digital signal processing (DSP) circuits use analog front-end anti-aliasing filters to process sensor inputs. These analog filters have a number of disadvantages with respect to cost, power, stability, and ease of integration in VLSI. This paper proposes the use of all-digital oversampling front-end sensors (based on adaptive filters), resulting in a performance/cost-effective DSP application. Simulations for modem and speech applications illustrate the design tradeoffs.
ISSN:1070-9908
1558-2361
DOI:10.1109/97.484210