Accession Number : ADA212347


Title :   Optimal Stochastic Modeling and Control of Flexible Structures


Descriptive Note : Final rept. Sep 1986-Sep 1988


Corporate Author : HR TEXTRON INC VALENCIA CA SERVOCONTROLS DIV


Personal Author(s) : Panossian, Hagop V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a212347.pdf


Report Date : Sep 1988


Pagination or Media Count : 321


Abstract : Modeling and control design of large flexible space structures under high uncertainty is considered. Linear stochastic system models with multiplicative and additive noises that are state -, control -, and measurement - dependent are treated extensively. Controllability, observability, and robustness issues are also discussed under various optimality considerations. An optimal stochastic controller is derived under perfect information and a sub- optimal compensator is formulated under partial and noisy information. The intent of the report is to treat the modeling of uncertainties and to develop the appropriate stochastic control that is robust. Aircraft; Jet aircraft; Linear control systems; Stochastic systems; Optimal control; Estimation; Robust control systems; Stochastic discreet time system; Multi-variable control.


Descriptors :   *AIRCRAFT , *FLEXIBLE STRUCTURES , MATHEMATICAL MODELS , LINEAR SYSTEMS , CONTROL , CONTROL SYSTEMS , LINEARITY , NOISE , MULTIPLICATION FACTOR , JET AIRCRAFT , COMPENSATORS , STOCHASTIC CONTROL , ADDITIVES , MULTIVARIATE ANALYSIS , OPTIMIZATION , SPACECRAFT , STOCHASTIC PROCESSES


Subject Categories : Aircraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE