间歇采样移频非均匀重复转发干扰

Intermittent Sampling and Frequency Shift Non-Uniform and Periodic Repeating Jamming

间歇采样转发干扰是基于DRFM技术的一种新型干扰样式。常规间歇采样转发干扰存在两类缺点:一是主假目标较真目标太远,不能产生压制干扰效果;二是在等时宽重复转发时产生的多假目标幅值恒定,不能形成两侧幅度逐渐递减的假目标。给出了一种新的间歇采样移频非均匀重复转发干扰的方法,通过对采样信号施以多普勒频移调制和非均匀转发,在欺骗干扰的基础上可实现多假目标群体压制干扰的效果。仿真实验表明了该方法能对真目标进行有效干扰。

Intermittent sampling and periodic repeating jamming is a new jamming pattern based on DRFM technology.There are two kinds of shortcomings of conventional intermittent sampling and periodic repeating jamming:Firstly,the main false target is too far from the true target to produce interference suppression effect;secondly,the constant time width is repeated.The multiple false target amplitudes generated during forwarding are constant,and it is impossible to form a false target where both sides are gradually decreasing.A new method of intermittent sampling frequency shifting non-uniform repetitive forwarding interference is presented.By applying Doppler shift modulation and non-uniform forwarding to the sampled signal,multiple false target group suppression can be realized based on deception jamming.Effect of the interference,simulation experiments show that the true targets could be jammed with this method effectively.