Research On Jamming Technology To Multiple Radar Signals Simultaneously Based On Digital Radio Frequency Memory

The thesis focusing on the multiple-signals jamming simultaneously, combined with DRFM technology,starts the study of the transmit-jamming system in the perspective of the application of ECM.The thesis discusses the working principle of DRFM and its basic components, combined with radar-jamming modulation technology, studies the theory of jamming technology based on DRFM in detail. Based on the introduction of LFM signal and Barker code, the thesis analyzes and simulates their jamming modulation technology.In the thesis, three kinds of the system design based on the multiple-signals jamming simultaneously are proposed. The DRFM system using a single storage module works in the cyclical way. The DRFM system using multiple storage modules based on signal recognition uses instantaneous frequency measurement technology and the specific jamming technology to process the signals. The DRFM system using multiple storage modules based on unknown signals has no signal recognition and uses the generic jamming resources to jam signals in chronological order. Finally, based on the simulation and analysis of the three jamming systems, the thesis verifies jamming ability of each system.