Title :
Sensitivity improvement in control and signal processing using Q-operator representations
Author :
Williamson, Darrell
Author_Institution :
Dept. of Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
This paper considers the finite wordlength sensitivity characteristics of a new class of Q-operator representations of linear discrete time systems. Q-operator representations can offer significant improvement over both forward shift and delta operator representations when the system poles are not all near either z=0 or z=+1, and especially when the poles are distributed around and near |z|=1. The positions of the system zeros are also shown to be important
Keywords :
discrete time systems; linear systems; poles and zeros; sensitivity analysis; signal processing; state-space methods; transfer functions; Q-operator representations; delta operator; finite wordlength sensitivity; forward shift; linear discrete time systems; signal processing; state space model; system poles; transfer function; Adaptive signal processing; Adaptive systems; Government; Information technology; Process control; Quantization; Robustness; Signal processing; State feedback; State-space methods;
Conference_Titel :
Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-1298-8
DOI :
10.1109/CDC.1993.325041
