Title :
An analysis on quantization effects in H∞ parameter identification
Author :
Ishii, Hide ; Basar, Tamer
Author_Institution :
Dept. of Inf. Phys. & Comput., Tokyo Univ., Japan
Abstract :
We consider the design of quantizers in a parameter identification setting under an H∞ criterion. Motivated by the communication constraints arising in systems employing networks, we are interested in answering the question of how coarse the quantization may be without sacrificing performance in identification. We make use of feedback in the communication and show that the H∞ identification problem induces a class of quantizers similar to logarithmic ones. We then show through examples that the proposed identifier is advantageous over a more conventional prefiltering scheme, especially when the quantization error is large.
Keywords :
H∞ control; feedback; filtering theory; parameter estimation; quantisation (signal); telecommunication networks; H∞ criterion; H∞ parameter identification; communication constraints; feedback; prefiltering method; quantization effects; quantization error; quantizer design; Bandwidth; Communication system control; Control systems; Design engineering; Feedback; Monitoring; Parameter estimation; Physics computing; Quantization; Sensor systems;
Conference_Titel :
Control Applications, 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8633-7
DOI :
10.1109/CCA.2004.1387255