PROCESSING RADAR IMPULSE SIGNALS ANALOG-DISCRETE MODE Russian patent published in 2007 - IPC G01S13/04 

FIELD: the invention refers to the field of radiolocation particularly to initial processing of echo-signals of a radar station and may be used at detection of useful signals against the background noise.

SUBSTANCE: the technical result is achieved in using the analog-discrete mode of processing radiolocation impulse signals with unknown short-term position incoming in the receiving tract from a phase detector on a video frequency, by way of coherent processing, including initial analog filtration, analog-digital transformation and discrete filtration with following incoherent processing and comparison with prescribed detection threshold, form an analog-discrete filter with common transfer characteristics K(ω) and with its aid the indicated coherent processing of signals is carried out. At that the transfer characteristics K(ω) of the formed analog-discrete filter is defined according to the formula where ω- a frequency; ▵t- a short-term digitization step; S^*(ω)- fully conjugated spectrum of a useful signal; N(ω) - spectral density of noise power.

EFFECT: reduces equipment costs in processing radiolocation signals at minimum meaning of arising losses in relation signal-cost.

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