METHOD TO IDENTIFY EXACTLY KNOWN SIGNAL AND DEVICE TO THIS END Russian patent published in 2009 - IPC H04B15/00 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, particularly to identification of radio pulse coming from exactly known, against the background of intrinsic noise, receiver. In compliance with this invention, nonlinear processing is effected for signal at optimum filter output to implement Slepyan theorem of low-power signal identification algorithm. Proposes method comprises narrow-band optimum filtration of input filtration, switching of HF-component phase of narrow-band process through π at every zero-level of the process envelope and making decision on signal availability by Slepyan criterion. Proposed device incorporates optimum linear filter with its input consisting of the device, amplitude-phase converter and Slepyan identification computer. Note here that the amplitude-phase converter input is connected with the optimum linear filter output, while the computer output makes the device output.

EFFECT: higher validity of identification in low signal-to-noise ratio area.

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