信噪比和均方

用matlab实现双极性归零码的仿真，波形及其功率谱，可以选择占空比(Achieved with the bipolar zero code matlab simulation, waveform and its power spectrum, you can select the duty cycle)

说明：  本程序适用于解决故障检测，数据驱动问题，主要应用pls.(This procedure applies to solve the fault detection, data-driven problems, the main application pls.)

控制领域非常棒的书，搞控制的必须学习。针对Design for Underactuated and Nonlinear Marine Systems，Khac Duc Do • Jie Pan这两个人必须知道！(Researchers Khac Duc Do and Jie Pan have published a sequence of journal and conference papers on new control algorithms for underactuated systems.)

本代码是基于镜头分割的关键帧提取代码，是用matlab来实现的。(The code is the code key frame extraction based on shot segmentation is achieved using matlab.)

帮朋友写的主成分分析，有图形显示，注意请自行判断数据是否需要转置。(Help a friend wrote principal component analysis, a graphic display, attention please judge for themselves whether the data needs to transpose.)

语音信号合成的算法，，频谱参数合成，基音和共振峰合成，线性预测系数合成等。及语音信号的变速变调算法(Speech signal synthesis algorithm, the spectrum parameters of synthesis, pitch and formant synthesis, synthesis of linear prediction coefficient, etc. And variable speed modulation algorithm of speech signal)

多径效应的仿真，瑞利平坦衰落信道的改进Jakes模型；得出信号功率随多普勒频移的变化(The simulation of the multipath effect)

A linear system is such that produces its output as a linear combination of its current and previous inputs and its previous outputs [13]. It can be described as time-invariant if the system parameters do not change with time

说明：  Matlab学习宝典 规划问题 Matlab学习宝典 (Matlab learning to learn Matlab programming problem Baodian Baodian)

MATLAB 官方手册，对于MATLAB软件有很大帮助，MATLAB是利用矩阵建立数据建模的很好的软件(MATLAB official handbook for the MATLAB software are very helpful, MATLAB is to use matrix to establish a good data modeling software)