The Power Trading Agent Competition

This is the specification for the Power Trading Agent Competition for 2012 (Power TAC 2012). Power TAC is a competitive simulation that models a “liberalized” retail electrical energy market, where competing business entities or “brokers” offer energy services to customers through tariff contracts, and must then serve those customers by trading...

Flood risk assessment and flood risk management; An introduction and guidance based on experiences and findings of FLOODsite (an EU-funded Integrated project)

FLOODsite, from the start, had the ambition to provide conceptual and methodological guidance on how to analyze and assess flood risks as well as on how to manage flood risk and flood events. The main goal of this volume is to share FLOODsite’s view on what a comprehensive approach to flood risk assessment and management is, and what it ought to...

A 4-D trajectory optimization and guidance technique for terminal area traffic management

A stochastic control approach to flight path monitoring

In the Programme for Harmonised Air Traffic management Research in Eurocontrol (PHARE) Medium Term Scenario, a number of Advanced Tools are described which must be developed in order to increase Air Traffic Control capacity and the flight efficiency of aircraft while keeping at least the same level of safety. One of these Tools is the Flight...

On the feasibility of applying robot vision to proximity extraction based on one camera in space

Existing robot vision algorithms are evaluated for application in space for proximity extraction using one camera. Lighting conditions and image formation differ from earth conditions which have implications. An algorithm is derived which is based on the use of run coding, tracking and a least mean error method. Problems concerning hardware...

Investigation on MLS approach path interception and transition techniques: part II: flight simulator investigation

Due to the wide coverage volume of MLS, in both azimuth and elevation, the system enables the introduction of new approach and terminal area procedures. For several years the NLR has been investigating the potential of MLS with respect to the execution of non-straight-in approaches. In an earlier theoretical study four MLS-guided interception...

Investigation on MLS approach path interception and transition techniques: part I: fast-time computer simulations

MLS provides the possibility to define non-straight-in approach paths and to use more advanced interception procedures. From an ATC point-of-view it became necessary to structure this capability as a prerequisite in order to make a realistic use of the potential capabilities of MLS. Four different MLS approach path interception procedures were...

Towards digital computer simulation of the dynamics of flexible spacecraft

Software design for digital computer simulation of the dynamics of flexible spacecraft equipped with actuators and sensors, should take into account two properties of the overall system: (i) s.ampled-data control of the spacecraft leads to discontinuous inputs (forcing functions) in the differential equations of motion, thereby requiring...

Application of model following control and estimation techniques to attitude control of manoeuvring spacecraft Part I: Theory and simulation results

This document presents an approach to sampled data, on-board estimation and control of the attitude motion of manoeuvring spacecraft. Algorithms which are developed include: a - model following control of attitude manoeuvres b - estimation of spacecraft state (attitude, angular velocity, disturbance torque) c - optical-inertial attitude...

Instrumentation for the determination of aircraft performance from dynamic maneuvers

In order to reduce the large amount of flight hours necessary for the determination of performance data of an aircraft, a method has been developed to extract these data from a single dynamic flight maneuver. The paper gives a description of the instrumentation on board of the proto type of a twin turbofan medium size aircraft, which was used...

A simulation investigation on the feasibility of curved approaches under MLS guidance. Revised edition

Investigation of a cross-coupling drift compensation method on a single axis gyro stabilized platform

In this report the phenomenon of cross-coupling drift (both S-IA and S-OA) due to vehicular angular movements is investigated. In a hardware test set-up, using an experimental Single Axis Platform composed of surplus parts from the former Eldo-A program, the theoretical result as well as a proposed method of compensation is verified.