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周期图法谱估计需要对信号序列“截断”或加窗处理，其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积，导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息，使估计谱的熵最大。(Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the result is an estimated power spectral density of the signal sequence of the real spectrum and spectral convolution window, resulting in the generation of errors. The procedures were designed periodogram, maximum entropy power spectrum estimation and the Welch method and their comparison, the maximum entropy power spectrum estimation purpose is to maximize the retention of truncated after the loss of the " window" than the information signal, the entropy of the estimated spectrum maximum.)

实序列FFT快速算法，用N点FFT计算2N点实序列的FFT，比直接进行2N点FFT运算减少一半运算量。(Real sequence FFT fast algorithm, using N-point FFT calculation 2N point real sequence of FFT, than the direct 2N-point FFT computation halved.)

基于matlab的粒子滤波目标跟踪算法，初学者很有用(Matlab-based particle filter target tracking algorithms , very useful for beginners)

相关向量机工具箱第一版和第二版，可以实现回归和分类，有运行的demo(first and second edition Relevance vector machine toolbox to achieve regression and classification)

盖尔圆法进行信号源数估计，方面不错。也可应用于聚类算法。(Source number Gail round signal estimation method, good aspects. Can also be applied clustering algorithm.)

说明：  有源滤波器检测算法的MATLAB程序，应用DQ0 算法，电流源加的是5 次谐波(active filter detection algorithm in MATLAB, application DQ0 algorithm increases the current source is the 5th harmonic)

Research paper for iris recognition this will be used for students who doing iris recognition.

MATLAB编程，我认为最实用的一部书。的确很详细，从新手到高手。(MATLAB programming, I think it is the most practical one book. Which is very detailed, from the novice to master.)

this document is related with physic method using matlab code

Kalman filter examples, kalman_smoother