S.V. Sumbaev1, A.R. Ilchuk2, S.B. Zhironkin3, D.V. Zakomoldin4

1, 3, 4 Zhukov Air and Space Defence Academy (Tver, Russia)
2 JSC «RPC «Istok» named after Shokin (Fryazino, Moscow region, Russia)
1 ser4959@yandex.ru, 2 arilchuk@istokmw.ru, 3 iadrin@mail.ru, 4 denjuga68@yandex.ru

The difficulties of timely detection of high-speed aircraft (HSA) in flight are due to their high flight performance, low radar and optical visibility for information systems of countermeasures.

The presence of multispectral unmasking features accompanying the flight of an HSA in the atmosphere with speeds of more than Mach 5 makes it possible to detect them with different types of sensors operating on different physical principles. The article synthesizes an algorithm for optimal complex processing of multispectral flight signal data and the structure of an integrated detection system that implements it.

The effectiveness of the proposed algorithm is evaluated using the example of complex processing of signal information from an optoelectronic detector in the IR range and a radar detector in the decameter wavelength range.

It is shown that one of the possible ways to improve the quality of HSA detection in the atmospheric flight section is the complex processing of multispectral data at the stage of their primary processing, taking into account the ratio of signal levels at the inputs of the combined detectors.

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