ch1

this code is for coverage distance

一本很好的傅里叶光学学习教材，英文原版，相当难得(A good learning material on Fourier optics, the English original, very rare)

读取wav文件，画出其时间－幅值图和做傅立叶变换(read documents paint their time-amplitude map and do Fourier Transform)

选择重传ARQ协议。自行编写，可以运行，注释详细，结构清晰，易于改写。使用队列实现选择选择重传ARQ，设定了传输时延和最大重传次数。(Select the retransmission ARQ protocol.Written by oneself, can run, annotation in detail, the structure is clear, easy to rewrite.Using queue implementation choices to choose the retransmission ARQ, setting the maximum retransmission times and transmission delay.)

matlab和C交互程序，MATLAB计算，C设计界面。(interactive program of matlab and C,matlab is suitable for computing and C is suitable for interface design.)

用4种方法绘出螺旋曲线上升的动态效果 x=cos(t) y=sin(t) z=t(Plotted using four methods increased the dynamic effect of the spiral curve x = cos (t) y = sin (t) z = t)

时间序列的多步预测程序，希望对大家能都有所帮助(Time series of multi-step forecasting process)

EKF滤波算法估计预测模型和量测模型精度比较高(EKF algorithm prediction error estimation model and matrix )

简易k-means聚类算法实例，针对二维数据，自带简易数据矩阵，分析结果有输出图像。(Simple k-means clustering algorithm example, for two-dimensional data, comes with simple data matrix, analysis results output image.)

matlab界面设计，通过一个实例详细介绍如何进行matlab界面设计(The Matlab interface design, a case study details how to matlab interface design)