Referenced Items are not available for this document.
The design of a transmultiplexer capable of performing the bilateral conversion between one 1544 kbit/s digital signal (which represents 24 PCM coded voice channels) and two analog group signals (each one containing 12 voice channels in the 60-108 kHz band) is investigated. It is shown that an FIR filter bank required as part of such a transmultiplexer can be realized efficiently by cascading a discrete cosine transform processor and a weighting network. Fast convolution algorithms are derived for evaluating the cosine transform. A method of using the symmetry conditions to reduce the computation rate in the weighting network and an elegant hardware configuration for implementing it are also discussed.
Published in:
Acoustics, Speech and Signal Processing, IEEE Transactions on
(Volume:27
,
Issue:
6
)
Date of Publication: Dec 1979
- Page(s):
- 752 - 762
- ISSN :
- 0096-3518
- Digital Object Identifier :
- 10.1109/TASSP.1979.1163301
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 29 January 2003
- Issue Date :
- Dec 1979
- Sponsored by :
- IEEE Signal Processing Society
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