singalpath

说明：  自适应滤波 回波抵消器中自适应滤波在matlab下的仿真(Adaptive filtering echo cancellation devices in adaptive filtering in matlab simulation)

电力系统故障仿真计算源码和模型，可以用来仿真电网的单相、两相和三相故障(Source and model of power system fault simulation can be used to the simulation grid single-phase, two-phase and three-phase fault)

本程序是显式模型预测控制算法，和以往的控制算法比较，计算量大大减少。(this procedure is a model predictive control algorithm, and past the control algorithm, the computation greatly reduced.)

matlab code for graphical calculation in networking area

实现维纳滤波用于语音增强。第一步采用频域谱函数计算最佳的维纳滤波器，再对输入带噪信号进行滤波；第二步是在此基础上的改进，用了自适应的思想，及时根据当前帧的状态更新修正滤波器的系统函数，得到更精确的无噪语音信号。第三步是采用自适应LMS方法，在时域迭代计算滤波器系数，迭代次数足够多时可得到较准确的有用信号。(Implement wiener filtering used in speech enhancement. First step optimum wiener filter is obtained by using the frequency spectrum function, again to input the signal with noise filtering The second step is the improvement on the basis of this, with the idea of adaptive, and in a timely manner according to the current frame updates correction system function of the filter, get a more accurate without noise speech signal. The third step is to use the adaptive LMS method, iterative calculation in time domain filter coefficient, the number of iterations enough to get the useful signal accurately.)

三相PWM整流器并网系统，包括锁相环，坐标变换，解耦控制算法，SPWM算法((Three-phase grid-connected systems, including phase-locked loop, coordinate transformation))

书籍频综和锁相环的Matlab源代码，对频综和锁相环的设计很有帮助；(Books PLL Frequency Synthesizer and the Matlab source code for PLL Frequency Synthesizer Design and helpful )

本压缩包里的文件包括MATLAB编写的数字识别程序以及所用的数字样本，供大家参考。(Number Recognition)

说明：  调用matlab详细程序 调用matlab详细程序 (Detailed procedures to call matlab to call matlab detailed procedures)

Markov Chain 3,4 states (Simple Markove Chain with 2,3,4 states )