Study on digital multidelay dense preceded jamming

Direct repeater jamming cause the problem of long delay and far behind of the real target. It is difficult to form an effective jamming to the phase coded radar. Aiming at the problem, a new method based on digital multidelay is proposed. Firstly, this paper analyzes the limitation of direct repeater jamming; Then, from the point of view of the phase coded signal processing, the paper proposes that the forward jamming effect can be formed by partial forwarding; Furthermore, by the way of digital multidelay, we can add the front part of phase-coded signal which can be obtained by the jammer, this jamming method realizes dense preceded false target jamming; At last of this paper, through simulation experiments, proves the effectiveness of the proposed method.