Assessment and improvement of autocorrelation performance of chaotic sequences using a phase space method

作者：Chen Bin^*

来源：Science China Information Sciences, 2011, 54(12): 2647-2659.

DOI：10.1007/s11432-011-4445-y

• chaos
• autocorrelation
• pseudorandom sequences
• phase space

Chaotic sequences have been widely used as pseudorandom sequences. However, how to judge whether their autocorrelation performance is good remains a problem because we have no simple method for assessing and improving the autocorrelation performance. Using a phase space method, we have discovered that the autocorrelation performance of a chaotic sequence is determined by whether its phase space trajectory is axis symmetrical, and have deduced theorems to describe and solve these problems. This paper presents a simple yet effective method to assess and improve the autocorrelation performance of chaotic sequences. Several simulations are presented to validate the theorems and method.

• 出版日期2011-12
• 单位江西财经大学