Sökning: "Lennart Ljung"
Visar resultat 16 - 20 av 48 avhandlingar innehållade orden Lennart Ljung.
16. Symbolic Methods and Tools for Discrete Event Dynamic Systems
Sammanfattning : The interest in Discrete Event Dynamic Systems (DEDS) has increased during the last years, due to the lack of methods and tools that are capable of handling the complexity of problems and tasks present in industry today. In this thesis we will consider a framework based on relations over finite domains. LÄS MER
17. Aspects of the Identification of Wiener Models
Sammanfattning : System identification deals with the problem of constructing models of systems from observations of the inputs and outputs to the systems. In this thesis, a particular class of models, Wiener models, is studied. The Wiener model consists of a linear dynamic block, followed by a static nonlinearity. LÄS MER
18. Methods for robust gain scheduling
Sammanfattning : Regulatorer används i många tillämpningar för att förbättra prestanda ochegenskaper hos fordon och farkoster av olika slag, t ex flygplan och raketer.Beroende på olika faktorer, som hastighet och höjd, kan dynamiken ochuppträdandet av dessa farkoster variera. LÄS MER
19. Estimation of Inverse Models Applied to Power Amplifier Predistortion
Sammanfattning : Mathematical models are commonly used in technical applications to describe the behavior of a system. These models can be estimated from data, which is known as system identification. Usually the models are used to calculate the output for a given input, but in this thesis, the estimation of inverse models is investigated. LÄS MER
20. Inverse system identification with applications in predistortion
Sammanfattning : Models are commonly used to simulate events and processes, and can be constructed from measured data using system identification. The common way is to model the system from input to output, but in this thesis we want to obtain the inverse of the system. LÄS MER