Butzer-2010a
From IEETA
Article
| Title | Herbert Raabe's work in multiplex signal transmission and his development of sampling methods |
|---|---|
| Author | Paul L. Butzer, Maurice M. Dodson, Paulo J S G Ferreira, J. R. Higgins, Otto Lange, Peter Seidler |
| Journal | Signal Processing |
| Volume | 90 |
| Number | 5 |
| Pages | 1436-1455 |
| Month | May |
| Year | 2010 |
| DOI | [1] |
| Group | |
| Group (before 2015) | Signal Processing Laboratory |
| Indexed by ISI | Yes |
- To cite or link by DOI use 10.1016/j.sigpro.2009.11.018.
- See also the SciTopics entry
Abstract
This paper discusses the work of Herbert Raabe (1909-2004) and its significance in terms of sampling. Raabe's thesis of 1939 is a milestone in the development of sampling: Raabe built and analysed the first time-division multiplex system for telephony, a task that required of him a thorough understanding of sampling, including sampling with pulses of finite duration and sampling of low-pass and band-pass signals. This paper discusses his approach, its significance from the viewpoint of sampling, the generality of its conclusions, and also the milieu that lead to his remarkable achievements: the exceptional research climate existing in Berlin at the time Raabe's condition, the work of Harry Nyquist on telegraphy and the so-called Nyquist rate. An English translation of the sections of Raabe's dissertation more closely related to sampling is included as an appendix.