Research Of Active Jamming To Pulse Compression Radar

Radar, as the product of the electronic technology, has been widely used in the information-related scene. In order to detect the target and reduce the interference, most radar has introduced the pulse compression, CFAR techniques, moving target indication and detection technology. As a result, traditional jamming mode can not receive a better effect due to the matchless with the receiver filter. Modern technology has been focused on how to utilize the microwave to protect own goals and destroy enemy electronic devices. Based on this, the article carried on a study on the interference of pulse compression radar.Firstly, we analyze the LFM signal characteristic, has a deep research on the pulse compression technology and Digital Radio Frequency Memory(DRFM), and propose several interference patterns including the copy forwarding interference, frequency-shift forwarding, the high-frequency narrow pulse interference and the delay forwarding interference. By juxtaposing with the traditional methods, we have the conclusion: only if we set the apposite parameter, can we get an expected interference effect.Secondly, compared to LFM signal, we analyze the differences and similarities with phase-code signal and have a research on the space sampling interference, the high-frequency narrow pulse interference. From the simulation result we can deduce that by set a proper duty, the main lobe deceiving effect and side lobe suppressing effect can be produced.Finally, we focus on the high-frequency narrow pulse interference and get the valuable conclusion. Compared with the traditional noise interference, this jamming mode is more efficacious and can be easily achieved. In addition, this jamming can make deception Jamming effect. In order to improving the energy efficiency, it’s parameter must be set according to the radar receiving frequency and bandwidth.