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提出一种改进传统Hénon映射的方法.该方法通过引入绝对值项改变映射系统的内部结构,大大提高了映射系统的线性复杂度和初值敏感性.利用混沌系统生成伪随机序列,进一步对比分析了映射系统生成的伪随机序列的性能.理论分析和实验仿真表明,改进后的映射系统比原系统生成的序列质量有很大提高,验证了该方法的有效性.
A new method to improve the traditional Hénon mapping is proposed. The method changes the internal structure of the mapping system by introducing absolute value terms, which greatly improves the linear complexity and initial value sensitivity of the mapping system. By using the chaotic system to generate pseudo-random sequences, The performance of the pseudo-random sequence generated by the mapping system is verified by theoretical analysis and experimental simulation, which shows that the improved mapping system greatly improves the quality of the sequence generated by the original system and validates the effectiveness of the proposed method.