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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
- Page(s):
- 1629 - 1632
- Digital Object Identifier :
- 10.1109/ICASSP.1985.1168203
- Product Type:
- Conference Publications
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