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一维Bernulli调频信号的相空间结构比较规则,容易被截获。与低维混沌映射相比,利用高维混沌映射所产生的混沌序列相空间更复杂,不易被截获,因此,提出了二维Henon调频信号,将其应用在雷达中,并将其与一维Bernulli调频信号从不同方面进行详细比较,仿真结果表明,虽然二维Henon调频信号提高了雷达的抗截获性能,但是在距离速度分辨率、成像质量,频谱利用率这些方面不如一维Bernulli调频信号。
One-dimensional Bernulli FM signal phase space structure rules, easy to intercept. Compared with the low-dimensional chaotic mapping, the chaotic sequence generated by the high-dimensional chaotic mapping is more complicated and can not be easily intercepted. Therefore, a two-dimensional Henon FM signal is proposed and applied to the radar, The Bernoulli FM signal is compared in detail from different aspects. The simulation results show that although the two-dimensional Henon FM signal improves the anti-interception performance of the radar, it is not as good as the one-dimensional Bernoulli FM signal in distance velocity resolution, imaging quality and spectrum utilization.