Author_Institution :
Bell Laboratories, Murray Hill, NJ
fDate :
3/1/1976 12:00:00 AM
Abstract :
It is easy to argue that real signals must be bandlimited. It is also easy to argue that they cannot be so. This paper presents one possible resolution of this seeming paradox. A philosophical discussion of the role of mathematical models in the exact sciences is given and a new formulation of the 2 WT theorem is presented. The paper is a written version of the second Shannon Lecture given at the 1974 International Symposium on Information Theory. An appendix giving proof of the 2 WT theorem has been added.
Keywords :
Bandwidth; Copper; Electromagnetic propagation; Frequency; Information theory; Mathematical model; Optical propagation; Signal resolution; Solids; Wires;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1976.10110
