改进LSSVM迁移学习方法的轴承故障诊断(1)

direct digital synthesis CORDIC

Numerical approximation rn of the definite integral from a to b that is obtained with the aid of Romberg s method with n rows and n columns.

arma模型，很不错的M文件，有助于学习提高(arma model, very good M-file help learning to improve)

这是一个用matlab编写的牛顿法源代码，比较简单的无约束方程。牛顿法是求非线性方程（组）零点的一种重要的迭代法，又称牛顿－拉弗森法或切线法。(This is a matlab source code written in Newton s method, relatively simple equation of the non-binding. Newton s method is the pursuit of non-linear equation (group) zero is an important iterative method, also known as Newton- La Fusen law or tangent method. )

IE自打印插件，在IE5中可以使用Webbrowser控件的ExecWB方法来实现自动无提示打印，但在>IE6版本此方法已经无效，此IE插件为此而产生。 此插件也是调用IE内置的打印功能，相当于window.external.Print() -> ExecWB(OLECMDID_PRINT,OLECMDEXECOPT_DONTPROMPTUSER,EmptyParam,EmptyParam) 仅此而已(IE print)

通过小波包分析带有随机噪声的信号，分析其障碍信号的功率谱(Use wavelet packet analysize signal with random noise, analyzes the obstacle signal power spectrum)

编写的一维非均匀傅里叶变换代码。不需要使用mex编译c文件或fortran文件。通过代码可了解NUFFT的技术细节。(One dimensional non-uniform Fourier transform code written. There is no need to use mex to compile C files or FORTRAN files. You can understand the technical details of NUFFT through code.)

Jankiraman和 Mohinder写的Space-time codes and MIMO systems的源码 (Jankiraman and Mohinder write Space-time codes MIMO systems and the source)

通过fir1设计FIR滤波器，fir2设计任意频率响应的滤波器，采用卷积计算信号通过系统后响应（还原），采用fftfilt计算信号通过系统后响应，一个长序列和一个短序列的卷积。(Fir1 through FIR filter design, fir2 design the frequency response of any filter, the use of convolution calculation of the signal through the system to respond to (restore), calculated using fftfilt signal through the system to respond to, a long sequence and a short sequence of convolution.)

平面近场声全息点源仿真程序，由全息面反推重建面声压信息(NAH )