一种基于逆向迭代的非相干检测的混沌数字通信方案

Non-coherent detection scheme for chaotic digital communications based on inverse iteration

利用Logistic映射在混沌区域内的前向时间迭代内扩张,在逆向时间迭代内收缩这一特点,结合最小误差原则,提出了一种基于逆向迭代的非相干检测的混沌数字通信方案并进行了仿真。对基于3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,系统的误码性能仍较好。此外,在参数误配不大的情况下,该方法依然有效。

By using intrinsic feature of Logistic map that expands in forward iteration and contracts in inverse iteration at the chaotic region in combination with the minimal error rule, a non-coherent detection scheme for chaotic digital communications was proposed and realized. Simulation results of three Logistic-map-based system indicate that the system performances are better even in low SNR condition and also this scheme is valid when there is little parameter mismatch.