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OFDM系统中的QPSK调制映射和调制解映射(QPSK modulation OFDM system mapping and modem mapping)

求解Chen系统的最大lyapunov指数。求解方法为定义法。两条相轨线的步长为初设距离d0的基础上加上相对分量。求解时直接运行chen_lyapunov.m即可。可移植性强，比如换求其他系统的最大lyapunov指数，只需要改变变量数目，方程即可。(Solving the maximum lyapunov index Chen system. Solving method for defining method. Plus the relative weight of the two basic steps of the phase trajectories for the preliminary design of the distance d0. Can be run directly chen_lyapunov.m solving. Portability, such as changing the index for the largest lyapunov other systems, you only need to change the number of variables, the equation can be.)

主成分分析法的matlab源程序，有用这种方法处理图像的不妨一试(Principal Component Analysis of the matlab source code, useful this method may wish to deal with images of one test)

电机设计matlab程序 四个例子很详细的说明了matlab的电机程序(Electrical design matlab procedures in great detail four examples illustrate the motor program matlab)

该程序为在matlab环境运行，主要演示koch曲线的生成和变化。以及奇怪吸引子的2D映射情况展示(The program running in the matlab environment, the main demonstration koch curve generation and changes. As well as the strange attractors of the 2D map display case)

说明：  人工免疫算法程序,请大家多多关注，谢谢！(Artificial immune algorithm procedures, please everybody a lot of concern, thank you!)

四阶龙格库塔法解常微分方程组 四阶龙格库塔法解常微分方程组(4-Runge-Kutta)

基站初始化,切换触发,切换协商,切换执行的具体过程实现.(Base station is initialized, trigger switch, switch consultations, switch the implementation of specific processes.)

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卷积码的编解码，译码采用维特比译码。编码包括zero-biting和tailing-biting两种方式。(Decoding convolutional codes, Viterbi decoding used. Code, including zero-biting and tailing-biting two ways.)