关于PID控制的文档，有利于了解PID算法，以及介绍了如何在Labview中利用工具箱来进行PID控制编程-Documents on the PID control, PID algorithm is conducive to understanding, and describes how the use of toolbox to Labview PID Control Programming

DCT变换方法，并讨论了应用MATLAB中的图像处理工具箱中的相关函数和命令来实现离散余弦变换的图像压缩算法的仿真。-DCT transformation method, and discusses application MATLAB image processing toolbox related functions and commands to achieve discrete cosine transform image compression algorithm simulation