Study of Millimeter-wave Active Jamming Based on Waveform Deception for Terminal-sensitive Projectiles

doi:10.3969/j.issn.1000-1093.2014.01.007

Abstract

Abstract: According to the characteristics of the encounter between terminal-sensitive projectile and metal target and the signal processing circuit of millimeter-wave (MMW) alternating current radiometer, a novel method of MMW active jamming based on waveform deception is proposed. An antenna temperature model for the interference source detection is analyzed and established. The antenna temperature signal has wider pulse width and constant amplitude compared with the output signal in ground metal target detection. Then the signal frequency is distorted by the inherent low-frequency cut-off feature of the video amplifier in the radiometer, generating the split signals of positive and negative pulse waveforms, in which the negative waveform pulse can be used to simulate the output signal in ground metal target detection. The experimental results demonstrate the validity and feasibility of the proposed method, which provides an approach for MMW terminal-sensitive active jamming.

Key words: ordnance science and technology, terminal-sensitive projectile, active jamming, waveform deception, widetime signal, millimeter-wave alternating current radiometer

CLC Number:

CHEN Xi, CHEN Zi-li, XU Jian-zhong, MENG Chun-xiang. Study of Millimeter-wave Active Jamming Based on Waveform Deception for Terminal-sensitive Projectiles[J]. Acta Armamentarii, 2014, 35(1): 49-54.

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