Orthogonal Functions Applied in Antenna Positioning

• Main Authors: JOVANOVIC, Z., MILOJKOVIC, M., DANKOVIC, B., ANTIC, D., NIKOLI, S., PERIC, S.
• Format: Article
• Language: English
• Published: Stefan cel Mare University of Suceava 2010-11-01
• Series: Advances in Electrical and Computer Engineering
• Subjects: antenna system; gradient method; orthogonal function; orthogonal filter
• Online Access: http://dx.doi.org/10.4316/AECE.2010.04006

In this paper, we present a method for designing orthogonal, Legendre type filters. Realization of these filters is very simple and they are very fast, robust and precise. They can be used for generating the sequence of Legendre orthogonal functions. We have also developed a new method for positioning an antenna system, based on these filters, where the filter is applied in detection of electromagnetic field gradient. Control algorithm is based on improved method of gradients. Proposed control algorithm has been verified on practically realized, experimental antenna system and compared with some others tracking control algorithms. Performed experiments have verified efficiency, speed and accuracy of the proposed control method.