Numerisk behandling av Kalmans ekvationer för tidsdiskreta system

In this report are discussed different algorithms for the state estimation problem according to the Kalman theory. It is shown that the highest accuracy is obtained with av algorithm consisting of three non-negative definite parts, but that shorter algorithms may be sufficient for certain systems. The necessity of enforcing symmetry on the algorithms is discussed together with different methods fo

Reglering av tidsvariabla system med Kalman-teori

Matematisk modell för sjön Trummen

The purpose with mathematical models in ecology is 1) to help to create better understanding of ecological systems behaviour and 2) to make it possible to estimate more accurately the effects of human interference in nature.

Identifiering av parametrar i tillståndsmodeller med rekursiv teknik, s.k. extended Kalman filter

Om regulatorer för maximalekonomisk styrning av fartyg

This paper deals with optimal long-distance steering of large vessels. The purpose of the paper is to design a regulator, that keeps a vessel, when affected by different disturbances, on an economical course. The vessel is supposed to have constant speed forward and therefore the only steering variable is the rudder angle. From a mathematical model of the vessel, the equations of motion are calcul

Identifiering av parametrar i tillståndsmodeller. En icke-rekursiv metod som bygger på variationskalkyl.

Rumsmätningar och identifiering av rummets dynamik med maximum-likelihoodmetodik

Measurements of a room have been done at the institution Byggnadskonstruktionslära, and I would like to thank the institution and especially Kurt Källblad for the help. Measurements have been done at three different warming types, radiant-, convective- and radiator warming. I have two inputs. One is the temperature of the heating apparatus, and the other one the outdoor temperature. The output i

Integrator för sampling av processignal

This paper deals with the construction of an interface which is to be placed between a process and a Process Computer. The interface shall integrate the process signal during a period which is a multiple of the period of the line-frequency. This means that the disturbance from line-frequency will be completely eliminated. The process signal is also to be transformed to the 0-+-10V-interval. The

Diagonal dekomponering. Analys och tillämpning på linjärkvadratiska problem

Tankreaktorn - Analys och syntes av några olika kemiska reaktionssystem

In this work, which is to be used as a supplementary example to the educational literature in Automatic Control, at LTH, I have chosen one reactor, in the group of chemical reactors, for the examination. The chosen reactor is the continuos-flow, autothermic, nonadiabatic stirred-tank reactor. Required cooling of the reaction mixture is achieved by letting the reactor-tank be surrounded by a coolin

Undersökning av Bakkes adaptiva regulator

Temperatursensor med känselkropp av bimetall för styrning av en effektfluidistor

Optimering av valsinställningarna i ett valsverk

Adaptiv regulator på lärande modell

Dimensionering av automatiskt landningssystem för flygplan: en tillämpning av lineärkvadratisk teori

Algoritmer för lösning av system av ordinära differentialekvationer

Identifiering av parametrar i tillståndsmodeller med hjälp av tidsdiskreta iterativa filter

Kalmanfilter. Adaptiva Kalmanfilter. Realtidsidentifiering.

Analys av en andra ordningens allmän kvadratisk differentialekvation

Jämförelse mellan tre olika metoder för reell tidsidentifiering