FIELD: instrument making.
SUBSTANCE: device comprises a unit to process radiolocating information, a generator of Doppler portraits, classifiers of the first and second level, a calculator to calculate a route speed module, a threshold device, a generator of reference data, a unit to extract spectral components of rotary elements and a classifier of spectral components of rotary elements with appropriate links that are connected to each other in a certain manner.
EFFECT: higher probability of proper determination of such classes of air objects as a helicopter and a single-engine aeroplane.
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