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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v78.i3.50
pages 251-260

ANALYSIS OF HIGH-POWER NARROWBAND INTERFERENCE SUPPRESSION SYSTEM IN RADIOMETRIC RECEIVER

T. D. Gutsol
State Agrarian and Engineering University in Podilya, 13 Schevchenko Str., Kamianets-Podilskyi 32300, Ukraine
A. D. Cherenkov
Kharkiv Petro Vasylenko National Technical University of Agriculture, 44 Alchevskikh Str., Kharkiv 61002, Ukraine
O. G. Avrunin
Kharkiv National University of Radio Electronics, 14 Nauka Ave, Kharkiv 61166, Ukraine
Valeriy V. Semenets
Kharkiv National University of Radio Engineering and Electronics, 14 Nauka Ave, Kharkiv, 61166, Ukraine

要約

The subject of this article is analytical analysis of the method and circuit of high-power narrowband interference suppression in the vicinity of the local oscillator frequency. The used method is based on the automatic detection of interference combined with the local oscillator frequency and maintaining constancy of its signal. Interference cancellation scheme is based on the principle of operation of the modulation radiometer, in which the "meander" voltage switching unit controls the operation of the microwave key, the voltage adders and the phase detector. The circuits of automatic frequency tuning and adjustment of the amplitude of the local oscillator are independent and act continuously.


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