The work presented in this thesis covers the topic of deployment for mobile robot teams. By connecting robots in teams they can perform a better job than each individual is capable of. It also gives redundancy, increases robustness, provides scalability, and increases efficiency. Multi-robot Information Fusion also results in a broader perspective for decision making. [...]
Implementation of a Scheduling and Allocation Algorithm for Hardware Evaluation
In this thesis, an intuitive approach to determine scheduling and allocation of a behavioral algorithm defined by a netlist is presented. In this approach, scheduling is based on a weighted list scheduling where operations have the longest critical path are scheduled first. The component allocations are resorted to the PDCPA algorithm which focus on making [...]
Electromagnetic wave scattering from an arbitrarily shaped bi-isotropic body of revolution
An efficient method for analyzing the scattering of electromagnetic waves from a bi-isotropic body is developed in this dissertation. Although the techniques developed is applicable for analyzing wave scattering from an arbitrarily shaped bi-isotropic body, it can hardly be used in an optimization process nor computer-aided product design because the computational time required for one [...]
Tracking and threat assessment for automotive collision avoidance
This thesis is concerned with automotive active safety, and a central theme is a new safety function called Emergency Lane Assist (ELA). Automotive safety is often categorised into passive and active safety, where passive safety is concerned with reducing the effects of accidents and active safety aims at avoiding them. ELA detects lane departure manoeuvres… [...]
Actuators for autonomous microrobots
This thesis presents actuators used in autonomous microsystems. Characteristic for all actuators presented is the low drive voltage and the low power consumption. Different motion mechanisms have been studied and applied in various locomotion modules for microrobots… Contents 1 Introduction 1.1 Background 2 Autonomous microrobots 2.1 Introduction to microrobots 2.2 The MiCRoN robots 2.2.1 Contributions [...]
Higher Harmonic Control and Flight Control System Interaction
Title: Model for Application to Higher Harmonic Control and Flight Control System Interaction This dissertation addresses a system, generally known as “Higher Harmonic Control” (HHC) because it consists of superimposing high frequency rotor inputs to the conventional low frequency ones used to control and maneuver the helicopter…. Contents 1 Introduction 1.1 Motivation 1.2 Literature review [...]
Logging and monitoring of TCP traffic in SSH-tunnels
The work documented in this thesis has been carried out at Ericsson Microwave Systems AB in Luleå. The company has developed a system for remote support. The system enables personnel working at Ericsson to access equipment at their customers’ sites via the Internet or other networks. There are several reasons for providing such a standardized [...]
Close Conjunction Detection on Parallel Computer
Close conjunction detection is the task of finding which satellites will come within a given distance of other satellites. The algorithms described here are implemented on the Connection Machine (CM) in a program called CM-COMBO. It will find close conjunctions of satellites over a time range for one, a few, or all satellites against the [...]
Imaging surface plasmon resonance
The central theme of this thesis is the use of imaging Surface Plasmon Resonance (iSPR) as a tool in the characterization of surfaces with laterally varying properties. Within the scope of this work, an instrument for iSPR analysis was designed and built. SPR is a very sensitive technique for monitoring changes in optical properties in [...]
Low Energy Wake-up Logic
Wake-up logic is responsible for informing instructions in the Window that are waiting to execute, about the availability of their input operands. The conventional method of wake-up consumes a significant percentage of the Instruction Window energy. Reducing the wake-up energy also addresses the Instruction Window hot spot problem caused due to the high power density [...]