FIELD: data processing.
SUBSTANCE: invention relates to means of detecting a signal with linear frequency modulation under noise conditions. Device operates in real time, based on FPLD due to use in convolution with input signals of support function, obtained by binary conversion of probing chirp signal. Using the binary reference function increases the contrast of the image for extended objects in the object domain, which enables to better identify areas of interest for subsequent identification, and improves numerical analysis of range to them, and also enables to adapt the same device for different in frequency, band and duration of probing chirp signals by loading during initialization of variable parameters and arrays of reference binary signal.
EFFECT: provision of matched filtration of chirp signals with variable parameters, such as deviation and duration of pulse.
1 cl, 2 dwg
