Aerials of digital on-air broadcasting
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2018, Vol 82, Issue 2
Abstract
Aerials of digital on-air broadcasting have the specific structural features, that consist in that for the best reception of digital signals without distortion of signal form, gain-frequency response of aerial as links of electric circle, must be wideband enough and have a higher order than first. Otherwise aerial will lose energy of the accepted signal, accordingly and distance of reception will diminish. There are a few approaches to the choice of method of energy loss indemnification of the accepted signal: the use of amplifiers of the accepted signal, increase of aerial construction elements, parallel connection of a few aerials, and use of aerials of difficult. All these approaches only partly solve the set problem, so as they use aerials that have frequency response of first-order. Therefore, constructing of aerials of higher order, that will allow to increase energy of the accepted signal is important, and accordingly, range and will improve a radio-device output-input ratio on the whole. In the article application of graphic method of digital signal approximation is considered.
Authors and Affiliations
V. P. Manoilov, P. P. Martynchuk, V. V. Chukhov, O. F. Dubyna
Keywords
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