Auto-Correlation Functions of Chaotic Binary Sequences Obtained by Alternating Two Binary Functions

Abstract

This paper discusses the auto-correlation functions of chaotic binary sequences obtained by a one-dimensional chaotic map and two binary functions. The two binary functions are alternately used to obtain a binary sequence from a chaotic real-valued sequence. We consider two similar methods and give the theoretical auto-correlation functions of the new binary sequences, which are expressed by the auto-/cross-correlation functions of the two chaotic binary sequences generated by a single binary function. Furthermore, some numerical experiments are performed to confirm the validity of the theoretical auto-correlation functions.

Keywords

• chaotic binary sequence
• one-dimensional chaotic map
• auto-correlation function
• cross-correlation function
• binary function