TwIST_v2

基于互功率谱的时延估计，是信号处理的基础，信号维数的估计。( Based on the time delay estimation of power spectrum, Is the basis of the signal processing, Signal dimension estimates.)

分形与图形设计，有Julia集，Mandelbrot集，Newton迭代以及三维混沌吸引子设计出的图像(Fractal and graphic design, there are Julia sets, Mandelbrot set, Newton iteration, as well as the design of three-dimensional chaotic attractor of the image)

Software tool for speech analysis

说明：  matlab与dsp之间进行udp通信的matlab程序，包含了自己的理解注释，可以实现简单的报文接收，并可以根据自己的需要进行实时的matlab报文数据处理解析。欢迎交流。(Matlab program for UDP communication between MATLAB and DSP contains its own understanding notes, which can realize simple message receiving and real-time matlab message data processing and analysis according to their own needs.)

这个GUI程序让你测量面积和图像中路径的长度，实现了对面积和路径的测量。 (a gui which allow measuring an areas size and a paths length on an image (map). You can calibrate the image scale. You place points using left mouse button and remove points & areas with right mouse button. You have three different methods of measuring the area surface: 1. Monte-Carlo. 2. Triangulation (my method which works really cool but isn t optimal). 3. MATLABs way (which works the best).)

单项桥式逆变电路的PWM matlab仿真文件，在 7.0下可运行(Single-bridge inverter circuit of the PWM matlab simulation files, can be run in 7.0)

用ofdm方法产生超宽带uwb信号，并绘出信号图形。(Methods using ultra-wideband OFDM UWB signal and the signal mapped graphics.)

南京大学黄宜华老师主编《深入理解大数据—大数据处理与编程实践》中的源码(code of 《Understanding big data-BIG DATA Processing and Programming》written by Huang Yihua, the preofessor of Nanjing University.)

说明：  用L-M 优化算法与贝叶斯正则化算法训练同一个样本(By LM optimization algorithm with Bayesian regularization algorithm for training with a sample)

This paper presents a new algorithm to extract the fetal ECG from an ECG recorded on the mother’s abdomen. The algorithm consists of two steps: first, ECG of fetus is extracted from the original signal using a two-level wavelet transform. We use Daubechie wavelet transform, which is similar in shape to heart beat wave. The resulted signal is then low-pass filtered using the Savitzky-Golay smoothing filter to attenuate the effect of noise. The filtered signal is considered as the fetal ECG. The algorithm was applied on both synthetic and real ECG signals. The results in this paper show that the proposed algorithm has promising performance.