New method to generate chaotic pseudo-random sequence
一种新的混沌伪随机序列生成方法*

Due to chaos degeneration question caused by computer limited precision in one chaos system, this paper proposed a method of pseudo-random sequence generation with alternating parameter of multistage chaos mapping. Based on one-dimensional Logistic mapping and two-dimensional Henon map, the system output was one component of Henon chaotic iterative values, which was controlled by the Hamming weight of Logistic chaotic iteration value with alternating parameter. Computer simulation results show that, the sequences generated by the chaos system can pass the three randomness testing of Golomb and partial randomness testing, and can be used as key stream in the encryption system.