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Effective multifrequency receiver design

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3 Author(s)
Klowak, G. ; University of Ottawa, Ottawa, Canada ; Cohn-Sfetcu, S. ; Steenaart, W.

An experimental digital multifrequency receiver was designed and implemented to verify the hypothesis that aliasing techniques can be used to improve the performance-cost ratio of these systems. The receiver employs specific spectral analysis and digit decoding algorithms to take advantage of the aliasing fold-over in order to reject voice-simulated digits. An approximate 2:1 reduction in computational requirement is obtained. Rigorous tests were carried out to verify that computational benefits are not obtained at the expense of degraded performance.

Published in:

Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '85.  (Volume:10 )

Date of Conference:

Apr 1985