ECCM scheme against dual-jammer cooperative jamming based on multi-channel cancellation

Countermeasure against cooperative jamming is one of the important subjects in the field of electronic counter-countermeasures (ECCM). In the cooperative jamming, the spatial position of each jammer is different, the jamming mode used by each jammer may be diverse, and the traditional anti-jamming methods are difficult to be effective. Therefore, how to suppress the jamming in different directions from different jammers is the key to solve the problem of cooperative jamming. In view of this situation, an ECCM scheme against dual-jammer cooperative jamming based on multi-channel cancellation is proposed in this paper, which uses the spatial degree of freedom of multi-channel synthetic aperture radar (SAR). This anti-jamming method is available for different active jamming forms, and has less computation. Theoretical analysis and simulation results verify that the proposed method can effectively counter dual-jammer cooperative jamming.