numerical-methods

一个改进的bp算法，很经典，很实用,希望大家喜欢！(An improved algorithm for bp, very classic, very useful, I hope everyone likes!)

FDTD三维场的叠加画图显示，很不错的程序。希望对大家有用!(Superposition of three-dimensional field FDTD drawing shows a very good program. Hope it useful!)

有关matlab的基本运算函数，基本绘图指令（平面和立体），pdf格式的matlab循序渐进是一本对初学者很有帮助的书(Related to basic computing matlab function, basic drawing commands (plane and three-dimensional), pdf format matlab is a gradual one pairs of helpful books for beginners)

基4FFT的matlab 有定点，浮点等三种算法程序(4FFT matlab)

GaussianNoise & LognormalNoise

In a series of papers in recent years new structures for coherent M-PSK (M-ary Phase Shift Keying) receivers were suggested. These include structures for carrier phase detectors for the carrier PLL (Phase Lock Loop), carrier PLL lock detectors, symbol timing error detectors, symbol synchronization PLL lock detectors, carrier and symbol PLL loop filters, and SNR (Signal to Noise Ratio) estimators

一份经典的支持向量机基本原理的课件，找了好久，希望对大家有帮助。(A classic basic principle of SVM courseware, looking for a long time, we want to help.)

该软件是利用matlab求曲线交点的源程序(The software is the intersection of the demand curve using matlab source)

用MATLAB做阶乘的和，比如1！+2！+3！+4！+。。。+10！(MATLAB to do with factorial and, for example, 1!+2!+3!+4!+...+10! )

电压暂降原始信号和小波分解程序，加入白噪后的信号及其小波分解程序，使用不同阈值方法去噪的比较，并对其波形读取，确定暂降的开始和结束点，功能强大。(Voltage sag original signal and wavelet decomposition process, after adding white noise signal and wavelet decomposition, the use of methods to compare different threshold de-noising, and its waveform is read to determine the sag of the start and end points, and powerful.)