Approximations to nonlinear observers

✍ Scribed by U. Schönwandt

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 532 KB
• Volume: 9
• Category: Article
• ISSN: 0005-1098
• DOI: 10.1016/0005-1098(73)90059-9

✦ Synopsis

A criterion of observability for systems with analytic nonlinearities can sometimes be employed to derive conceptually simple observers, which might also be acceptable from the implementation point of view.

Snmmary--ln this paper a criterion of observability for systems with analytic nonlinearities is used to derive finite dimensional approximations to nonlinear observers for this class of system. The observers and a second order filter are applied to stochastic velocity control of an asymmetrical rotating body. A configuration is considered which allows the observers to appear as useful devices in handling problems caused by discrete data transmission on a too slow rate. The results are illustrated by a digital computer simulation.