【作者】 李雪霞； 冯久超；

【Author】 Li Xuexia,Feng Jiuchao Faculty of Electronic and Information Engineering,Southwest University,Chongqing 400715,School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510641,China

【机构】 西南大学电子信息工程学院；

【摘要】 利用Logistic映射在混沌区城内在前向时间迭代内是扩张的,而在逆向时间迭代内是收缩的的特点,并结合最小误差原则,本文提出并仿真实现了一种非相干检测的混沌数字通信方案。对基于三种不同形式的Logistic映射系统的仿真表明,即使在较低信噪比的情况下,系统的误码性能都较好。此外,在参数误配不大的情况下,该方法依然有效。更多还原

【Abstract】 By using the intrinsic feature of Logistic map (i.e., at the chaotic region, it expands in forward iteration and contracts in inverse iteration), and combining the minimal error rule, a non-coherent detection scheme for chaotic digital communications is proposed and realized in this paper. The results by simulation three Logistic-map-based systems indicate that the performances of the systems are better even when signal to noise ration (SNR) is low. In addition, the scheme is valid when the parameter’s mismatch exists in a way.更多还原