chap3

教材。主要是一些有意思的小程序，可以帮助学习Matlab(The little code can plot line as we click on。)

说明：  包含理想、高斯、巴特沃斯三种经典情形的带通滤波函数。 附带网格划分函数及其剪裁函数。(The band-pass filter function includes three classical cases: ideal, Gauss and Butterworth. The mesh division function and its clipping function are attached.)

k均值聚类算法源码（matlab） k均值聚类算法源码（matlab）(k-means clustering algorithm source code (matlab) k-means clustering algorithm source code (matlab))

运用matlab提取图像并将其转化为灰度图和其它图形，实现图像变换(Extraction using matlab and converted into grayscale images and other graphics, Image transformation)

说明：  轮式移动机器人的避障，可以实现机器人在约束环境中的期望运动(Wheeled mobile robot obstacle avoidance can be achieved in the constrained environment of the robot s expectations Movement)

建立一个实测信号的样本，这里我建立四个随机信号的样本，因为方便显示，蓝色信号为有用信号（正弦信号），黑色的四个信号是随机信号分别与正弦信号叠加形成的实测信号，最后红色的信号为样本的均值信号，即为时域同步平均效果下的信号。(A sample of the measured signal, I created four random signal samples, because it' s easy to display, blue signal is useful signal (sinusoidal signal), four black signal is a random signal with sinusoidal signal is superimposed on the formation of the measured signal. the final red signal is the mean of the sample signal, that is, the average effect of time-domain synchronous signal.)

说明：  该程序是在matlab中利用窗函数法设计滤波器的示例(The program is using the window function matlab filter design example)

线性调频步进脉冲信号的脉冲压缩实现，有结果运行截图(Chirp step pulse signal pulse compression implementation, the results of running screenshots )

this is basic matlab explanation. i will upload 5documents.

说明：  自相关函数求解代码，可以求取信号的自相关函数(Autocorrelation function to solve the code, you can strike a signal autocorrelation function)