This paper presents an adaptive bathymetric estimation algorithm (ABE) for use with forward-looking hull mounted sonar in shallow water environments. In addition to providing improved positional estimates of ocean bottom contacts in front of the host vehicle, it will automatically estimate and adapt to changes in the local sound speed. Preliminary simulation results are given for a simple two-d...

The shelling of crystals is concerned with counting the number of atoms on spherical shells of a given radius and a fixed centre. Its straight-forward generalization to quasicrystals, the so-called central shelling, leads to non-universal answers. As one way to cope with this situation, we consider shelling averages over all quasicrystal points. We express the averaged shelling numbers in terms...

We discuss the recently proposed Hybrid Backprojection/Lower-Value (HBLV) algorithm and its implementation in the NMR projection-reconstruction software PR-CALC. We argue that the HBLV reconstruction is only suitable for spectra that have no negative peaks. However, in such cases HBLV becomes a straight-forward generalization of the Lower-Value reconstruction algorithm and boils down to a simpl...

Abstract---In this paper, basic offense and defense events of soccer game have been undertaken due its significance for the fans in one side, game analysts and team coaches on other side. Offense and defense strategies and capabilities are the most important events in the soccer game because they determine the ability of controlling the play, penetration and even scoring. A straight forward and...

Factor analysis of Gough's 300-item Adjective Check List identified 8 highest-loading items for 7 factors of self-perception. These were alphabetized and presented with 6-point scales to 713 females in teacher training. Factor analysis of the 66 self-rating items replicated the original structure, and simple scale sums showed satisfactory internal consistency and test-retest stability. Correlat...

Articulated robot arms offer maximum positioning flexibility but suffer from complex kinematics. In most applications, linear motion is desirable. Calculating the kinematic equations which govern an articulated arm is straight forward; however, it is generally difJicult to calculate the inverse kinematic equations that are needed to position the arm in closed form. Using a fuzzy reasoning syste...

Based on the well known theory of infinite periodic structures, analytical theory of EBG (electromagnetic band gap) cells suppressing 6 higher (spurious) stop-bands is developed. Using such cells in a cascade the straight-forward procedure for design of the corresponding EBG band-stop filter is proposed, with possibility to control the width and the depth of the stopband. The analytical theory ...

l . INTRODUCTION A class of double error correcting linear convolutional codes are given. T h e codes are derived from double-error-correct ing tr iple-error-detect ing extended BCH codes. T h e codes being proposed are not covered by previous works ([7], [2], [3]). Error propagation in the proposed codes is discussed. For the sake of simplicity of arguments only binary codes are discussed. Ext...

Rule extraction from neural networks often focusses on exact equivalence and is often tested on relatively small canonical examples. We apply genetic algorithms to the extract approximate rules from neural networks. The method is robust and works with large networks. We compare the results with rules obtained using state of the art decision tree methods and achieve superior performance to strai...

This paper describes a simple and straight forward implementation of Axis-Aligned Bounding-Box (AABB) for OpenGL 3-Dimensional (3D) virtual environment for games and simulation purpose. The implementation of AABB is conducted in OpenGL graphic library version 1.2 with C++ programming language by using Visual C++. The implementation could help young and begineer computer graphics student to mast...