对动目标检测雷达的正弦波调频干扰

doi:10.3969/j.issn.1001-2400.2010.02.016

Abstract

Abstract:

A novel model to produce sinusoidal weighted frequency modulated jamming is put forward. And it is used to jam moving target detection and imaging. In the model, the radar transmitting signal frequency is modulated by the sinusoidal frequency. It is then convoluted with the false moving model signal and retransmitted. The jamming signal frequency is modulated by the sinusoidal frequency, so the signal difference between dual channels increases and there is less correlation. When the power ratio of the moving target echo to the jamming signal is between -16dB and -12dB, big errors occur in velocity and cross-range coordinate. Deception jamming can be obtained. When the power ratio between moving target echo and jamming signal is less than -16dB the detection threshold grows under the influence of the jamming signals of great power. And detection probability falls rapidly. By simulation the method has a good effect on jamming moving target detection and is realized easily.

Key words: electronic countermeasure, sinusoidal weighted frequency modulation jamming, moving target detection, displaced phase center antenna(DPCA), detection probability

ZHU Yan;CUI Yan-peng;ZHAO Guo-qing. Sinusoidal weighted frequency modulation jamming technique against moving target detection radar[J].J4, 2010, 37(2): 273-278.

References

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Sinusoidal weighted frequency modulation jamming technique against moving target detection radar

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