NARROW-BAND SIGNAL CORRELATION DEVICE Russian patent published in 2019 - IPC G01S3/46 

Abstract RU 2704241 C1

FIELD: radar ranging.

SUBSTANCE: invention relates to radar ranging and can be used as a signal correlation device in a correlation-phase direction finder. Technical result is achieved due to use of controlled phase shifter and phase self-tuning of frequency of fork heterodyne, wherein phase automatic self-tuning of fork heterodyne frequency allows compensating phase raids of processed signals at input of multiplier, due to which frequency of the signal at the output of the multiplier corresponds to the resonant frequency of the narrow-band filter, which enables to reduce the pass band of said filter. Narrow-band filter bandwidth narrowing reduces noise error of phase difference of processed signals.

EFFECT: high accuracy of measuring phase difference of processed signals from dynamic radiation sources.

1 cl, 1 dwg

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RU 2 704 241 C1

Authors

Valyaev Igor Nikolaevich

Kovalenko Vladimir Pavlovich

Mironov Vladimir Vladimirovich

Smirnov Aleksandr Alekseevich

Dates

2019-10-25Published

2019-04-11Filed