对机载预警雷达STAP的慢时调频干扰方法

doi:10.12305/j.issn.1001-506X.2021.11.17

Abstract

Abstract:

Space-time adaptive processing (STAP) on airborne radar can generate two-dimensional notches by means of sampling from received signals, preventing jammers from creating dense false pulses. An effective approach of increasing the number of false pulses is presented in this paper. Frequency uniqueness condition is theoretically deduced, which implies pulses with different Doppler frequencies cannot be sampled yet cancelled by STAP. This method improves controllability, thus we can set ranges and radial velocity of jamming pulses in fast-time and slow-time respectively, which facilitates covering precisely in a region or densely overspreading the whole detection range. Simulations validate that, by means of setting different Doppler phases to each jamming pulses will improve the number and density of jamming signals remarkably. This method also works well to reduced-dimension STAP.

Key words: space-time adaptive processing (STAP), jamming, electronic warfare, slow-time-frequency-modulation

CLC Number:

TN972

Xiaozhou CHEN, Qingjun XING, Lidong ZHANG. Slow-time-frequency-modulation jamming method forSTAP airborne early-warning radar[J]. Systems Engineering and Electronics, 2021, 43(11): 3177-3184.

Figures/Tables 8

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Slow-time-frequency-modulation jamming method forSTAP airborne early-warning radar

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