Jamming detection and erasing method based on the rate-enhanced JTIDS waveform

ZHANG Yu; WU Zhao; SONG Jian

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (8) : 821-825.

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Jamming detection and erasing method based on the rate-enhanced JTIDS waveform

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Abstract

Joint tactical information distribution system (JTIDS) is a kind of widely used situational awareness data-link. To solve the performance deterioration problem of the rate-enhanced JTIDS in the presence of partial-band barrage jamming, a low complexity method for interference detection and erasure is proposed. First of all, the signal-to-noise ratio (SNR) of each pulse is estimated and the pulse is classified roughly. Then, the average SNR of all the normal pulses in the time slot is estimated. Finally, a fine pulse classification is performed, and each pulse is given an erasure-factor in a certain strategy. Simulation shows that this method greatly eases the effects of the partial-band barrage jamming on the reception performance and significantly reduces the bit error rate. The method is low complexity and easy to implement.

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rate-enhanced joint tactical information distribution system (JTIDS) / interference detection / erasure factor / signal-to-noise ratio estimation

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ZHANG Yu, WU Zhao, SONG Jian. Jamming detection and erasing method based on the rate-enhanced JTIDS waveform[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(8): 821-825

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