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跳频序列是跳频通信的关键技术之一,基于混沌映射产生跳频序列是目前较为常用的一种方式。针对单一映射产生的跳频序列存在抗预测能力不强和有限精度的问题,文章采用Jacobi序列扰动级联Logistic映射和Tent映射产生的跳频序列,并利用模d加余算法进行宽间隔处理的方法。仿真分析表明,文章所得到的跳频序列在均衡性,随机性,汉明相关性,复杂度以及平均跳频间隔等方面能够较好满足跳频通信对跳频序列的要求。
The frequency hopping sequence is one of the key technologies of frequency hopping communication. Frequency hopping based on the chaotic mapping is a commonly used method at present. The problem that the hopping sequences generated by a single mapping has poor anti-prediction capability and limited accuracy is that the Jacobi sequence perturbation is used to perturb the hopping sequences generated by the cascade Logistic and Tent maps and the interval d method. The simulation results show that the frequency hopping sequences obtained by the paper can meet the requirement of frequency hopping communication in frequency hopping communication in terms of equalization, randomness, Hamming correlation, complexity and average hopping interval.