FIELD: radio engineering; developing new radio-link noise stations and retrofitting existing ones.
SUBSTANCE: proposed station is designed for continuous radio reconnaissance and suppression of radio links by correlating convolution and attenuating noise signal arriving from transmitting antenna (reflected from underlying terrain). To this end use is made of chirp signal as target noise and local oscillator signal for additional frequency conversion of signals received. Chirp noise is attenuated due to its suppression in rejection filter and expansion of gain-frequency path at second-mixer output. Radio link noise station has receiving antenna 1, mixers 2.1, 2.2, band filters 3.1, 3.2, rejection filter 4, switches 9.1, 9.2, receiver 5, analyzer 6, limiting amplifier 7, detector 8, modulator 14, power amplifier 15, transmitting antenna 16, reference oscillator 10, frequency divider 11, frequency setting unit 12, and line frequency-modulated generator 13.
EFFECT: provision for continuous radio link reconnaissance and noise attenuation.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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RU2251708C1 |
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| METEOROLOGICAL RADAR WITH CONTINUOUS SIGNAL | 0 |
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| DEVICE FOR TRANSMITTING AND RECEIVING PHASE- AND FREQUENCY- MODULATED SIGNALS | 2002 |
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|
RU2214608C2 |
| FILTER | 0 |
|
SU1104657A1 |
| SPECTRUM ACOUSTIC-OPTICAL ANALYZER | 0 |
|
SU1721534A1 |
| 0 |
|
SU1780038A2 |
