Radar advanced jamming technology based on DRFM
ZHAO Zhong-kai
ZHANG Ji-na
Abstract：Aiming at the problem that the pulse front anti-jamming technology is used to detect the targets in the radar receivers, a radar advanced jamming method based on digital radio frequency memory ( DRFM) was proposed. The radar signal was sampled and converted into the digital bit stream with the high speed ADC, and the pulse repetition interval ( PRI) tracker was designed with FGPA to achieve the tracking and prediction of radar radio frequency signal. In addition, the non-distortion storage and time delay superposition processing of radar signal were completed. Finally, the advanced jamming signal with the coherence of radar signal was modulated. The results show that the jamming signal is ahead of the target echo signal, and has both deception and suppression effects. The experimental results achieve the expected effect.
Keywords：anti-jammingdigital radio frequency memoryadvanced jammingpulse repetition interval ( PRI ) trackertracking and predictionnon-distortion storagetime-delay superpositioncoherence
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 524-528 )