Open AccessThe frequency range selection for airborne weather radar with the search for areas with the visibility of landmarks for flight and landing
Author(s) -
А. Р. Бестугин,
M. B. Ryzhikov,
Iu. A. Novikova
Publication year - 2018
Publication title -
radiopromyšlennostʹ
Language(s) - English
Resource type - Journals
eISSN - 2541-870X
pISSN - 2413-9599
DOI - 10.21778/2413-9599-2018-28-3-8-17
Subject(s) - remote sensing , radar , visibility , antenna (radio) , weather radar , environmental science , radar horizon , 3d radar , meteorology , radar imaging , radar engineering details , computer science , geology , geography , telecommunications
A radar dome of a small aircraft can accommodate an antenna with a small aperture only. The energy potential and radiation parameters required for detection of hazardous weather events are thereby impaired. Mathematical modeling of the effect of wavelength change on the quality of radar meteorological forecast has been performed. Performance parameters of small-sized weather radars have been evaluated for enhancing the safety of the flights of small aircraft. Mathematics have been presented for comparing the efficiency of detecting dangerous thunderstorm areas with allowance for the signal reflection from the ground surface. The formula take into account the wavelength, the directional function of the antenna system, the radar reflectivity of the ground surface, the speed and altitude of flight. The efficiency of the weather radar with a small-sized antenna aperture operating in3 cmand8 mmwave lengths has been reviewed. The detection range of small aircraft radars with different wavelengths in different weather conditions has been determined. A flight envelope search mode is proposed with a possibility of visual orientation and landing in bad weather conditions. The mode is based on measuring the radar reflectivity of moisture targets.