Lax_Friedrichs

一些有用的无线通信物理层的matlab代码，每个文件夹内都有代码使用说明。(some useful MATLAB codes about PHY layer of wireless communication.)

thèse filtrage ecg, etudes détaillé sur le procédé de filtrage ecg pour élimination du bruit

基于辛普森积分计算电磁场外层线积分响应，关于电磁法方面的(Simpson points based on the calculation of electromagnetic fields in response to the outer line of points on the electromagnetic law)

在MatlAB环境中，对某信号x（t）进行经验模式分解的函数，EMD的源程序代码(The signal x ( T ) by empirical mode decomposition in MatlAB environment, the source code of EMD)

A 4 bit twisted ring counter is a sequential circuit which produces the following sequence of output values: 0000, 1000, 1100, 1110, 1111, 0111, 0011, 0001 and then repeats. Design a circuit for a 4 bit twisted ring counter that uses four D flip flops. Draw a state transition diagram, a state table and a schematic for your circuit. Design an alternate implementation using just three flip flops and draw a state transition diagram, state table and a schematic for your circuit. If your designs are extended to implement an n bit twisted ring counter, how many flip flops are required using each of the two approaches. In what situations would you prefer the first method? In what situations would you prefer the second?

对异常声音做时延的模拟，并得出四个模拟麦克风接收的音频信号。(On the unusual sound of analog delay to do, and come to the microphone to receive the four analog audio signals.)

凸优化程序，包络一些常用的一维搜索方法，二维优化方法，非常适用于初学者学习(Convex optimization program, envelope some common one-dimensional search methods, two-dimensional optimization method, very suitable for beginners to learn)

对曲线进行拟合，使得最后拟合的数据与元数据的误差最小(The curve fitting, so that the final fitting of the data with the metadata minimum error)

智能天线MVDR算法，自适应检测DOA，达到优化性能的目的。(The smart antenna MVDR algorithm, adaptive detection DOA, to achieve the purpose of optimizing performance.)

说明：  流形学习非线性降维的经典算法Isomap(isomap algorithm with the data and the paper in 2000)