Publica
Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. On the realization of bandpass type systems for bounded bandlimited signals
 Douglas, S.C. ; IEEE Signal Processing Society: IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2010. Proceedings. Vol.5 : 1419 March 2010, Dallas, Texas, USA Piscataway/NJ: IEEE, 2010 ISBN: 9781424442959 ISBN: 9781424442966 pp.37023705 
 International Conference on Acoustics, Speech and Signal Processing (ICASSP) <35, 2010, Dallas/Tex.> 

 English 
 Conference Paper 
 Fraunhofer HHI () 
Abstract
In this paper we analyze bandpass type systems that operate on bounded bandlimited signals. For a very general class of bandpass type systems, we prove that there exists no linear realization of the systems in this class. Since ideal bandpass type systems are included in this class, it follows that there exists no linear realization of ideal bandpass type systems. This result is obtained under very general assumptions. For example, we do not assume the systems to be timeinvariance. Finally, it is shown that a nonlinear realization of bandpass type systems is possible.