D.F. Zaitsev - Dr. Sc. (Eng.), Main Designer, Moscow State University of Information Technologies, Radio Engineering and Electronics (MIREA), Head of Laboratory, JSC «CRET». E-mail: zaysev@yandex.ru V.P. Kortnev - Ph. D. (Eng.), Senior Research Scientist, JSC «CRET» D.V. Mordasov - Junior Research Scientist, JSC «CRET». E-mail: danmordasov@gmail.com

The results of the comparative analysis of the estimated range of detection of stealth targets in terms of precipitation on the track, depending on the frequency band for medium-range broadband radiophotonic active electronically scanned array (AESA)-(ROFAR). It is shown that in the precipitation of significant intensity of the propagation path of the beam radar centimeter range, the detection range of the common objectives is significantly reduced, and for the purpose of stealth detection range falls to unacceptably low values. At the same time, the possibility of radiophotonic AESA work in a wide instantaneous bandwidth relative to the low-frequency decimeter bands, significantly, several times, to increase the range of detection of stealth targets, despite the difficult weather conditions, while maintaining a high range resolution in this way. Application of new technologies of beam narrowing of radiophotonic AESA also gives the opportunity to save high resolution corner inherent centimeter range AESA without increasing the size of the antenna array. This ensures high efficiency of radiophotonic AESA in all weather conditions - all-weather capability.

 

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