DEVICE FOR DETERMINING FREQUENCY, TYPE OF MODULATION AND KEYING OF RECEIVED SIGNALS Russian patent published in 2014 - IPC G01R23/16 

FIELD: radio engineering, communication.

SUBSTANCE: disclosed device relates to radio electronics and can be used to determine carrier frequency, type of modulation and keying of signals received in a given frequency band. The device for determining frequency, type of modulation and keying of received signals has a receiving antenna, an input circuit, a search unit, a high frequency amplifier, a heterodyne, a mixer, an intermediate frequency amplifier, seven amplitude detectors, two video amplifiers, a frequency scanning generator, a cathode-ray tube, five switches, three high-pass filters, three low-pass filters, two square-wave generators, two voltage dividers, two frequency detectors, four spectrum analysers, seven comparator units, a phase detector, a complex spectrum analyser, a phase spectrum linear component analyser, an amplitude spectrum symmetry analyser, five analog-to-number converters, six AND coincidence elements, four inverters, a number-to-voltage converter, a phase doubler, a phase quadrupler and an eight-times phase multiplier.

EFFECT: high noise-immunity of a panoramic receiver and accuracy of measurements.

6 dwg