| Coherent processing and matched reception technologies have been widely used in modern new radar, and greatly enhance the ability of anti-jamming. These technologies make traditional jamming, suppressing jamming and deception jamming, failed. Combined with the traditional radar jamming, this article analyzes the smart noise jamming and cites four smart noise jamming patterns: coherent in-pulse suppressing jamming, intensive false targets with frequency-shift, front edge replication jamming and equal-partition pulse sampling jamming.To analyze the jamming effects of these patterns, the simulation methods are used. Firstly, the LFM pulse signal is analyzed. Secondly, the signal processing part of the receiver of the pulse compression radar is analyzed and simulated. Finally, base the former works, four patterns of smart noise jamming are simulated, their efficiency are analyzed respectively, and their quantitative consequences are given.The smart noise jamming possesses the merits of suppressing jamming and deception jamming, it makes the radar hard to draw useful information from the jamming backdrop, thus the smart noise jamming possesses important theoretical means and practical values. |
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