EKF UKF Toolbox for Matlab V1.3

双线性内插法用于图像配准，主要完成图像的伸缩，旋转变换。(Bilinear interpolation for image registration, mainly to complete the image scaling, rotation transformation.)

这是周建兴编写的<<matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing written < <matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，)

John D. Anderson《计算流体力学基础及其应用》 第9章：二维不可压库埃特流的数值解。自己编写的Matlab源代码。(John D. Anderson " Computational Fluid Dynamics basis of its application" Chapter 9: two-dimensional numerical solution of incompressible Couette flow. I have written Matlab source code.)

说明：  双音频按键识别 背景： 打电话拨号时，每次按键会发出不同的声音，这些声音实际上是由一些固定频率的正弦信号合成的。因为每个按键声音包含两个不同频率的正弦信号，因此也被称为“双音频”信号，简记为DTMF。这相当于是对不同键位用‘音频’进行了编码，如同计算机领域中用数字0和1对处理对象（包括键盘）进行编码。(Two-tone buttons identify Background: When you call dial, each key emits different sounds, which is actually made up of some fixed frequency sinusoidal signal synthesis. Because the sound of each key contains two sinusoidal signals of different frequencies, it is also known as &quot two-tone&quot signal, abbreviated as DTMF. This is equivalent to different keys using the ' audio' encoded, as the computer industry with the numbers 0 and 1 pair of processing object (including the keyboard) to be encoded.)

its a chebyshev-2 band pass filter

是用于模式识别中的一种数据采样方法，此方法是把数据按一定的比例分为训练数据和测试数据。(for pattern recognition of a data sampling methods, This method is data by a certain percentage into training data and test data.)

Modes in Annular Ring

卡农音乐播放代码，能正常运行，用matlab编写(Canon music player code, it works, using matlab)

piv测速的matlab代码的说明和解释，此为流场piv测速的开源代码的具体说明(piv Speed of matlab code, instructions and explanations, this is the velocity flow field piv specification of open source code)

Trigonometric functions using MATLAB to achieve power spectral analysis