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A Time-Sharing TX/RX Control Technique for the Rejection of Feedback Noise Jamming Interference  

Jeong Un-Seob (국방과학연구소)
Ra Sung-Woong (충남대학교 정보통신공학부 영상통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.12C, 2005 , pp. 1201-1207 More about this Journal
Abstract
When the isolation between transmitter and receiver in Electronic Warfare equipment is not sufficient, the radiated noise jamming signal from the transmitter feeds back into the receiver and interferes with receiving radar pulse signal. Therefore pulse jamming and noise jamming can't be performed together in the same frequency bands. In this paper, we present a time-sharing TX/RX control technique of the switch matrix which inhibits the transmission of noise jamming signal by using the predicted gate of pulse train and also makes the corresponding channel filter operate to receive the radar pulse signal during the predicted gate pulse. This technique was implemented by EPLD and confirmed by experiment. The proposed technique enables the pulse jamming and the noise jamming to be simultaneously executed in multiple jamming environments.
Keywords
Electronic warfare; Switch matrix; Noise jamming; Pulse jamming; Time-sharing;
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