Abstract
A well-known theorem of Beurling demonstrates that distinct bandlimited signals remain distinct after instantaneous companding and ideal lowpass filtering. Motivated by this result, Landau developed an iterative method for recovering a bandlimited signal after companding and lowpass filtering. This paper describes an alternative to lowpass filtering for restoring the original bandwidth to a companded bandlimited signal prior to transmission on a bandlimited channel. This approach allows the original signal to be recovered without iteration, but it also introduces some synchronization issues. These issues are examined and the design of companding functions that endow the transmitted with desired characteristics is considered.
| Original language | English (US) |
|---|---|
| Title of host publication | Conference Record of the Asilomar Conference on Signals, Systems and Computers |
| Publisher | IEEE |
| Pages | 1407-1411 |
| Number of pages | 5 |
| Volume | 2 |
| State | Published - 1997 |
| Event | Proceedings of the 1996 30th Asilomar Conference on Signals, Systems & Computers. Part 2 (of 2) - Pacific Grove, CA, USA Duration: Nov 3 1996 → Nov 6 1996 |
Other
| Other | Proceedings of the 1996 30th Asilomar Conference on Signals, Systems & Computers. Part 2 (of 2) |
|---|---|
| City | Pacific Grove, CA, USA |
| Period | 11/3/96 → 11/6/96 |
ASJC Scopus subject areas
- Hardware and Architecture
- Signal Processing
- Electrical and Electronic Engineering
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Cite this
Trelewicz, J. Q., Martin, R., & Cochran, D. (1997). Sampling approach to bandlimiting instantaneously companded signals. In Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 2, pp. 1407-1411). IEEE.