DEVICE FOR DISCRIMINATION BETWEEN CHIRP SIGNALS, PHASE-SHIFT KEYED SIGNAL AND NORMAL SIGNAL Russian patent published in 2014 - IPC H04B1/10 

FIELD: radio engineering, communication.

SUBSTANCE: device contains two Fourier transform units, logarithm converter, envelope detector, limiting amplifier, synchroniser, two delay units, single vibrator, four keys, two triggers, three AND elements, comparator and four inverters. All these components are connected to each other in a certain manner.

EFFECT: higher sensitivity upon signal processing.

3 dwg