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A priori knowledge about the process is often available when designing an adaptive controller. This report describes a method to use this knowledge.
The first step is to design a nominal controller. In the following steps the nominal controller is modified adaptively. The principal advantage of this method over conventional methods is that the calculations are minimized.
In this
Window based interactive software systems can be used to create very user friendly interface e.g. to image processing libraries, and hence to image processing hardware. A system has been implemented, where standard "off the shelf" products that are commercially available from different companies have been used. The use of readily available components greatly simplifies the implementation
The report describes a system, which can be used to determine the position and orientation of items. The system consists of one video-camera, one framegrabber-board making the image digital and a personal computer. The camera is placed above a lightboard, on which the object lies. This involves that only the two-dimensional projection is studied.
A program, written in C, has been develope
Recent high quality printers pose interesting questions on how to reproduce images taken by a video camera. A modern ink jet plotter has typically a resolution four times better than a good video camera. Pixel replication and bilinear interpolation give reasonable results, but have a tendency to blur the image. In contrast to these blurring phenomena, it is well known that the apparent visual qual
The purpose of this thesis has been to examine the possibilities of implementing feeling to a submarine steering gear.
This report describes a model for simulation of backlash and friction effects in electrically powered rotating mechanical systems. A tank fire control system is treated as an example. The simulation package Simnon is used for all simulations.
The purpose of this thesis has been to study different types of control strategies for an Electrohydraulic position servo in a Fuel metering valve. The Servo needs a high accuracy and fast response controller. Unlinearlities cause the system dynamics to vary with different operating conditions. A mathematical model implemented in the simulation tool ACSL is used in design and analysis. The System
