shuzituxiangchuli

说明：  混合Newton发求最小值.原理是基于Newton法，求解非线性方程。利用和最速下降法混合，避免了Newton的不足(ues mix Newton method to solve the problem: min f(x))

之前保留的一本关于matlab的学习资料，对于初学者也许有用，不算太难(Keep a book about learning matlab data before, maybe useful for novices, not too hard)

结合短时能量和过零率对一段连续发音的wav文件进行端点检测，将单个词组的发音分割出来。(Combination of short-term energy and zero crossing rate of a continuous sound of the wav file detection, the pronunciation of a single phrase differently.)

matlabPPt教程后续部分，讲述Matlab基础知识(matlabPPt up part of the tutorial, basic knowledge about Matlab )

数字信号处理相关源代码，有用的代码。是初学者的好帮手(Digital signal processing related to source code, useful code. Is a good helper for beginners)

Signal Combination by s-parameters

This is used for contrast streching in an image to improve the image quality.

说明：  有关信号与信息系统的matlab程序--傅立叶级数和变换(Signal and information systems related to the matlab procedure- Fourier series and transform)

离散系统的数字PID控制，可以根据S参数选择跟踪三角波、锯齿波、随机信号，跟踪效果良好。(Discrete system of digital PID control, S-parameters can be selected track triangle wave, sawtooth, random signals, track to good effect.)

基于MATLAB的QPSK调制程序，简单易懂(QPSK demodulation based on MATLAB program, easy to understand)