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20 MHz-3 GHz Programmable Chirp Spread Spectrum Generator for a Wideband Radio Jamming Application
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 Title & Authors
20 MHz-3 GHz Programmable Chirp Spread Spectrum Generator for a Wideband Radio Jamming Application
Kim, Sun-Ryoul; Ryu, Hyuk; Ha, Keum-Won; Kim, Jeong-Geun; Baek, Donghyun;
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In this paper, an agile programmable chirp spread spectrum generator for wideband frequency-jamming applications from 20 MHz to 3 GHz is proposed. A frequency-mixing architecture using two voltage-controlled oscillators is used to achieve a wideband operating frequency range, and the direct digital synthesizer (DDS)-based chirping method with a two-point modulation technique is employed to provide a programmable and consistent chirp bandwidth. The proposed signal generator provides the various programmable FM signals from 20 MHz to 3 GHz with a modulation bandwidth from 0 to 400 MHz. The prototype successfully demonstrates arbitrary sequential jamming operation with a fast band-to-band hopping time of < 10 .
Linear frequency modulator;Frequency chirp generator;Frequency jamming;Frequency hopping;Phase-locked loops;
 Cited by
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