stretch

说明：  关于MUSIC算法的源代码。很好用的(MUSIC algorithm on the source code. Good used)

这是根据系留艇采集的数据，分析某地24小时内，各气象要素随高度的变化。(This is based on data collected by the boat mooring, analysis of a place within 24 hours, the meteorological elements variation with height. )

针对频率周期振荡的振动系统讨论自适应控制问题,在频率跟踪的基础上对频率变化的振动响应进行控 制,给出相应的估计、滤波与控制方法。首先在子空间辨识原理的基础上,通过测量信号自相关序列的递推运算获得信号 频率 然后根据估计频率实时调整带通滤波器的中心频率,使其跟踪信号频率,实现信号分量的跟踪滤波 最后在LMS方 法的基础上构造对信号分量进行控制的自适应控制器。(The adaptive vibration control of systems excited by forces of periodically varying frequencieswas dis- cussed. The presented adaptive controlwas realized on the basis of tracking of time-varying frequencies and amethod for online frequency estimation, filtering and controlwas proposed. Based on the principle of subspace identification, the time-varying frequencieswere estimated from the recursively computed autocorrelation ofmeasured signals. )

说明：  matlab 3d曲面回歸擬合教學範例 ptt檔(matlab 3d surface regression practices to ptt file)

matlab拓展编程，本书以matlab扩展编程及其应用实例为主线，以matlab与c、visual basic、excel、网络和硬件接口为核心，采用图文并茂的方式，系统介绍了matlab的新特性(matlab to expand programming, book matlab expansion of the programming and its application examples the main line, as the core of matlab and c, visual basic, excel, network and hardware interface, using illustrated the way, the system introduces the new features of the matlab)

dirfield7 2D draws the direction field of the system of differential equations

its help ful for learning adaptive filter I hope that you have good learning adaptive filter

用matlab是实现半带抽取、半带内插滤波器，以及fft变换，CIC等等。(Using matlab to achieve half-band extraction, half-band interpolation filter, as well as the fft transform, CIC, etc..)

说明：  matlab实用教程，包括很多源代码，都是一些基础知识，(matlab Practical Guide, including a lot of source code, are the basis of knowledge,)

to extract the pitch