Browse Proceedings

A case study was conducted which describes the application of systems engineering during the concept validation, system design and development, and production phases of the GPS program. The case examines the applied systems engineering processes, as ...

A study is conducted to determine the relative productivity of employing two pressurized or two unpressurized robotic rovers with two teams of astronauts to accomplish a group of activities on the Moon. An automated planning tool is used to calculate ...

Navigation, guidance and control for small space vehicles require inertial measurement sensors which are small, inexpensive, low power, reliable and accurate. Micro inertial sensors, such as MEMS gyroscopes, can provide small, inexpensive, low power ...

A program/project baseline is a reference configuration from which to identify and to control change. A complete baseline is explicit and specific and covers the program/project technical aspects, cost, schedule and risks. The set of documents that ...

We define the main conception for the methodology, which forms the basis of the procedures for constructing abstract Kalman-Mesarovic realization of a dynamic system with state equations that belong to the class of linear non-stationary differential ...

The realization problem for singular positive multi-input and multi-output (MIMO) 2D linear hybrid systems is addressed. A method based on the state variable diagram for finding positive realizations of a given improper transfer matrix is proposed. ...

This paper deals with design and visualization of H-∞ robust controller. It gives a brief mathematical description of physical model of suspension system of a car which was chosen as a typical example of robust control use. Therefore, first a quarter ...

The paper offers further development and applications of the theory of a parametrical regulation of market economy evolution. This theory consists of the following sections: formation of a library of economic systems' mathematical models; of rigidness (...

This paper considers pole assignment and Riccati equation control of nonlinear dynamic systems described by State Dependent Parameter (SDP) models. The approach follows from earlier research into linear Proportional-Integral-Plus (PIP) methods but, in ...

This paper presents a methodology for modeling of Wiener, Hammerstein and feedback-nonlinear systems via orthonormal basis and radial basis functions. The approach is computationally effective, in particular in terms of elimination of the disastrous ...

In this paper, the dynamical model for a two-link space robot is developed utilizing quaternion based rotation operators. The model is simulated and is shown to be free of orientation induced singularities. Furthermore, the limitations of computed ...

A modification for a recently developed recursive Frisch scheme algorithm to identify dynamical linear time-invariant errors-in-variables systems is proposed for the case of white measurement noise. For the update of the estimated model parameters, a ...

The paper deals with the identification of dynamic discrete-time linear time-invariant errors-in-variables systems for the case of coloured output noise. The proposed algorithm is constructed within an extended bias compensated least squares framework, ...

Hybrid electric vehicles (HEV) have been recently attracting considerable attention from both car manufacturers and customers. This innovative concept is challenged by high expectations concerning the performance and comfortissues [6], whilst at the ...

This paper discusses linear fractional representations (LFR) of parameter-dependent nonlinear systems with real-rational nonlinearities and point-delayed dynamics. Sufficient conditions for robust global asymptotic stability both independent of and ...

The process of abstracting physical systems to obtain models and interpret these for the desired purpose is considered from a perspective originating from the behavioural framework. It is pointed out that for the purpose of modelling regenerative ...

Electromagnetic Field interference caused by electric power lines sharing the same corridor with pipelines can produce the unsafe operation of the protection and measuring systems of the pipeline under both normal and faulty conditions. Voltages can be ...

The Condition Monitoring of On-Load Tap Changers is very important because they have proved to be the elements with noticeable failures in a power transformer. This article describes the development of a portable virtual instrument for monitoring this ...

The paper deals with problematic of renewable energy sources focused mainly on use of Sun energy, Hydrogen technology and, above all, use of heat pumps for buildings heating. It gives a basic introduction into renewable energy sources and their use in ...

Micro-generators are devices installed in houses producing electricity at kilowatt level. These appliances can increase energy efficiency significantly, especially when their runtime is optimized. During power outages micro-generators can supply critical ...

The paper shows a new control strategy for the matrix converter, witch can be applied to the multiphase device. Multiphase converters (12x12 structures) do not require costly and non effective filters and show much better over all performance than three ...

In the present paper, Random Forests are used in a critical and at the same time non trivial problem concerning the diagnosis of Gas Turbine blading faults, portraying promising results. Random forests-based fault diagnosis is treated as a Pattern ...

The aim of the study was to examine the possibilities of the development of a prognostic instrument for the air quality management in big cities. The models ANNs were tested (MLP and RBF type). The study was focused on the development of the neural ...

The aim of the study was to examine the possibilities of the development of a prognostic instrument for the air quality management in cities. The study was focused on the development of the neural network models for prediction of the classes of the air ...

The following paper presents a concept of Discriminative Elastic Grids (DEG) – an object recognition approach derived from the Deformable Template paradigm. DEG is an array of appropriately preset nodes, which interact with each other and with an image. ...