DIGITAL PHASE-SHIFT KEYED SIGNAL DETECTOR Russian patent published in 2019 - IPC H04L27/22 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering and can be used in radio devices using phase-shift keyed (FSK) signals. Digital phase-shift keyed signal detector comprises a narrow-band filter, a frequency multiplier, an analogue-to-digital converter, a multi-bit shift register for four readings, first and second subtractors, first and second n-cascade quadrature signal processing channels, each of which comprises in-series connected sample processing units, each of which units consists of multi-bit code shift register and adder, third, fourth, fifth and sixth subtractors, first and second memory devices, each of which generates at the first output the current input value of the input signal, and the second output is the previously recorded previous value, the first and second quadratic converters, the decoding device.

EFFECT: reduced maximum level of penetration of a signal component into a channel for estimating interference intensity when the FSK signal is switched on and off at the input of the detector.

1 cl, 5 dwg