bch

数字信号处理中，希尔伯特变换器优化设计研究学习(Digital signal processing, the Hilbert converter optimized design of the study)

编写M文件，创建如下图形窗口，分别绘制如下图所示的曲线。 （1）曲线y=sin(t)sin(9t)，要求采用红色，点线。横坐标取值范围[0~ ]，标注x轴、y轴并加标题。 （2）一组余弦曲线，其振幅分别为0.4，0.6和0.8。横坐标取值范围[0~2 ]。添加图例与标题。进入图形编辑状态，调整图例的位置。 （3）分别绘制peaks函数的曲面图和网格线图。对曲面图做平滑处理，并添加标题与colorbar。 (Write M file, create the following graphics window, curves were plotted as shown below. (A) the curve y = sin (t) sin (9t), require the use of a red dotted line. The abscissa in the range [0 ~  ], labeled x-axis, y-axis and a title. (2) a set of a cosine curve, and the amplitude was 0.4, 0.6, 0.8. Abscissa value range [0 ~ 2  ]. Add a legend and title. Into the graphical editing mode, adjust the position of the legend. (3) were drawn surface chart peaks function and grid line graph. Surface charts do for smoothing and add titles and colorbar.)

用于计算拟合曲线的上下包络，需要用matlab来实现(Used to calculate the fitting curve of the upper and lower envelopes, using matlab to achieve)

各种经典PID的MATLAB程序，主要涉及温度控制，压力控制，液位控制等(All kinds of classic PID MATLAB procedures, mainly related to the temperature control, pressure control, level control, etc )

关于一个轴承故障分解程序，里面包含小波去噪，重构等，还有EMD模态分解，并且还有各种功率谱仿真图(About a bearing failure decomposition process, which contains the wavelet de-noising, reconstruction, etc., as well as mode decomposition EMD, and there are a variety of power spectrum simulation map)

Matlab数学建模算法全收录，数学建模需要的大部分算法，模型都有(Matlab mathematical modeling algorithm all included, mathematical modeling needs most of the algorithm, the model has)

线性规划算法，来自于《精通MATLAB最优化计算》(linear program )

Control DC Motor via Matlab simulation

在Juan Cardelino发布的FMM(fast marching methos)2维程序基础上改写的3维程序。并改写成适合复杂速度模型，可用于地震旅行时计算。大模型3d算法在matlab下计算速度较慢，根据源码中的注释很容易改写成c程序。(3D FMM program revised from Juan Cardelino s 2D version. The program can calculate the seismic traveltimes in 3D complex model)

美国轨道谱AAR5铁路轨道空间谱生成程序，主要生成轨距不平顺性。(generate the AAR5 track Rolling and gauge Irregularity)