Title :
Modelling of analog networks by digital circuits
Author_Institution :
Siemens AG, Dusseldorf, West Germany
Abstract :
The author discusses the problem of modelling an analog network by a digital circuit. A novel method is used to find bounds for the modelling error in the case of a given analog network. It is demonstrated that in certain cases a substantial error remains independently of the type of the digital system (FIR, recursive filters; minimum-phase, nonminimum-phase digital system) even if the degree of the system is extended to very high order (approaching infinity). Finally, methods are proposed which help to reduce this modelling limit
Keywords :
analogue circuits; error analysis; modelling; network analysis; analog networks; digital circuits; error; modelling; Analog-digital conversion; Digital circuits; Digital filters; Digital systems; Echo cancellers; Error analysis; Finite impulse response filter; Frequency conversion; Sampling methods; Transfer functions;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15141
