Bayesian estimation for decision-directed stochastic control

Stochastic processes with a decision-directed control are considered as controlled Markov processes, the state space of which is hybrid; i.e. a product of a discrete set and a Euclidean space. This approach yields a mathematical model for many problems of decision-directed stochastic control. In general, the observations made from the "past" and...

Control loops with human operators in space operations: part V: executive summary

This volume comprises the executive summary of the final report of the study on Control Loops with Human Operators in Space Operations, performed for the European Space Agency (ESA). It summarises the following four volumes: Part I : Human Engineering Analysis, Synthesis and Evaluation Techniques (NLR) Part II : Robotics Operations and Manual...

Control loops with human operators in space operations: part III: rendezvous and docking operations and model analysis of performance with human-in-the-loop

This report presents the results of an illustrative analysis of human-in-the-loop rendezvous and docking (RVD) performance, for the purpose of demonstrating the practicality of applying human engineering methods and techniques, introduced in Part I of this project, to the analysis of control loops with human operators in space operations....

Visual scene perception process involved in the manual approach

The outside scene is often an important soiirce of information for manual control tasks. In the context of aircraft control the most important example is the visual approach scene. This study deals with modelling the visual scene perception process on the basis of linear perspective geometry and the relative motion cues and investigates its...

Multiple attitude maneuvers for a spinning spacecraft disturbed by solar radiation

The attitude motion of interplanetary, spinning spacecraft under the influence of solar radiation and optimal thrusting, is investigated. A general model is formulated to describe the forces and torques exerted on the spacecraft due to solar radiation. The model is compared with model! available in the large body of literature on the subject. It...

Performance and workload analysis of in-flight helicopter missions

The study described in this report was aimed at assessing the potentials of the optimal control model structure to predict the important characteristics of realistic operational helicopter missions. The theoretical and experimental results indicate that the optimal control model succesfully predicts the best attainable (rather than the average)...

Design and analysis of a hodograph method for the calculation of supercritical shock-free aerofoils

In this study, an algorithm for the computational design of supercritical shock-free aerofoils is developed and analyzed with hodograph theory. Such an algorithm may be based on the combination of two approaches for the construction of solutions of the flow equations for shock-free transonic flow. In the first approach, such solutions are...

Human monitoring and control behaviour models and experiments

This report deals with a theoretical and experimental program concerning human monitoring and and control behaviour. A model for multivariable monitoring (an automatic approach) was tested against experimental data. Apart from monitoring, simultaneously monitoring and manual flight director control was studied to determine the interference...

A theoretical framework to study the effect of cockpit information

This paper deals with a theoretical framework describing human operator's participation in manned vehicle systems. Herewith, the human operator is described in terms commensurate with those used for other system elements, which is desirable because of the complex interaction between human functioning and his task environment (e.g. cockpit i...

Survey of modern control and observation theory for disturbed, target following aerospace systems. Part one: Basic theory

The document contains a general theory towards the observation and optimal control of disturbed, target following aerospace systems. Disturbed, target following aerospace systems eire defined as aerospace systems that are designed to track a moving target system, while they are subjected to external, time-varying disturbances. The first five...