DISANZHANG

因为傅立叶变换对应的是无限信号,信号经过分帧后变成有限信号,分帧的信号再进行傅立叶变换后,高频部分将有 泄露 ,所以要加窗. 窗函数的拼谱都是在某高频部分截止,所以每帧信号加窗后的傅立叶变化,频谱基本 泄露 (Because Fourier transform corresponding is infinite signals, signals after framing become limited, framing signal again after Fourier transform, the high frequency part will have leaked , so to add window. Window function spell spectrum are in a high frequency part of the globe, so each frame and window after Fourier transform, signal spectrum basic leak )

快速傅里叶变换程序，供大家参考，matlab下运行，可以看波形(Fast Fourier transform procedures for your reference, matlab running, you can see the waveform)

We consider a complex-valued wavefield reconstruction in an object plane from data in a sensor plane. A digital modeling for the forward propagation is presented in the algebraic matrix form M-DDT. The inverse propagation is formalized as an inverse problem. The main algorithm of the complex-valued wavefield reconstruction with the proposed Matrix Discrete Diffraction Transform (M-DDT) is prepared as a Matlab demo.

文件名：C-C法计算时间延迟和嵌入维数 C-C法计算出相空间重构的时间延迟和嵌入维数 文件名：dingyi_lyapunov 采用定义法计算lyapunov指数 文件名：fencha 求lorenz系统分岔图（采用区域最大值法） 文件名：m_test 求解嵌入维数m 文件名：pinghengdian 求lorenz系统在某一系数下的平衡点，并求出特征值 文件名：poincare 求lorenz系统的poincare截面 文件名：PSD 求lorenz系统的功率谱 文件名：tau_test 相空间重构时间延迟求解 文件名：time_test lorenz系统时域分析，相平面图 文件名：wolf_lyapunov wolf法求解lyapunov指数（需要配合求解m和嵌入时间延迟t使用） 文件名：xiao_shuju 小数据量法求解lyapunov指数 文件名：zheng_jiao 正交法求lyapunov指数谱(choastic time series analysis)

使用matlab实现基于CV模型的EKF滤波跟踪算法(Implementation of EKF filtering algorithm based on CV model by using MATLAB)

说明：  基于PCA人脸识别算法的研究，用matlab实现。(PCA-based face recognition algorithm using matlab to achieve.)

cours systeme temps reel

语音分析与合成的资料以及matlab的有关说明(Speech analysis and synthesis of information and the related statement matlab)

it s for TSP with Simulated Annealing

用于求信号的自相光与互相关 (compute autocorrleation and cross-correlation)