enhance_composite_SFunction_sigma

说明：  基于matlab简单图像处理系统中对图片的取反功能(Based on a simple matlab image processing system for the inversion of the image)

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MIT-BIH心电数据库中包含有大量的心电信号，用户可以直接下载这些信号用于信号分析，算法验证等。但是其数据存储格式复杂，只能用其提供的工具包进行读取，很不方便。本源码可以直接读取MIT-BIH中的format212和format16格式的心电数据，免去了学习其繁琐工具包的过程。(MIT-BIH ECG database contains a large number of ECG signals, users can directly download these signals used in signal analysis, verification algorithm. However, the complexity of its data storage format, can only provide a toolkit to read, very inconvenient. The source can be directly read the MIT-BIH in format212 and format16 ECG data format, which eliminates the cumbersome tool kit to learn their process.)

空间飞行器三轴稳定姿态动力学仿真，三轴稳定姿态动力学仿真(Stable attitude dynamics simulation of the space vehicle three weeks)

说明：  单相并网逆变器，使用无源阻尼，实现并网电流波形和电网电压波形同频同相(Single-phase grid-connected inverters, using passive damping, realize grid-connected current waveform and grid voltage waveform in the same frequency and phase)

C编写的BPSK调制解调，很有用，值得学习，代码编写很规范(Written in C BPSK modulation and demodulation, very useful, it is worth learning, very standardized coding)

MATLAB绘图，包含了MATLAB常用的绘图命令，对学习MATLAB具有很大的帮助。(MATLAB graphics, including the popular MATLAB graphics commands, to learn MATLAB great help.)

数字信号处理 Digital signal processing(Digital signal processing Digital signal processing)

讲述MATLAB与VC混合编程的一篇文章(About the mixed programming MATLAB and VC article)

自动电镀生产线的简单生产工序操作控制软件(Simple production process operation control software automatically plating production line)