基于混沌映射的相关跳频系统转移函数构造

Transition function design for DFH system based on chaotic maps

频率转移函数是相关跳频的关键技术之一,将直接影响相关跳频通信系统的性能。本文在深入分析转移函数数学模型和Logistic映射特点的基础上,提出了一种基于Logistic满映射混沌序列的转移函数构造方法。性能分析结果表明,基于该类转移函数的相关跳频序列具有良好的随机性和均匀性,能获得最佳相关纠错性能。

The frequency transition function in DFH system is one of the key technologies and will influences the performance of the corresponding communication system considerably. This paper analyzes the characteristics of the transition function model and the chaotic logistic map, and then proposes a transition function design method based on chaotic sequences by full logistic mapping. Results of the performance analysis indicate that the DFH transition functions designed by this method can lead to better randomicity and uniformity of DFH sequences, and acquire the best error-correcting performance.