dechirp_test

稀尔波特－黄变换 工具箱 包含全部的m文件。(HHT transform Toolbox)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

PGM-Programming_Assignment_2,概率图模型的网络公开课的第二次作业的代码matlab版本(Code matlab version PGM-Programming_Assignment_2, open class of probabilistic graphical network model' s second job)

this code name is fast Fourier and it is used to implement the fast Fourier algorithm

说明：  基于MATLAB的电液伺服系统最优调节器的设计与仿真(The electro-hydraulic servo system based on MATLAB Optimal Regulator Design and Simulation)

平衡反应器，用来分析在不同的时间尺度内的化学反应进行程度和气体生成(the conp code is used to analysis the degree of chemical reactions and the productions.)

MATLAB语言常用算法程序集，对学习信号处理者有一定的帮助(MATLAB language commonly used algorithm for the assembly, signal processing in learning to help those who have some)

我改写的多变量带约束的遗传算法Matlab源程序！(Multi-variable Constrained Optimization by GA in Matlab!!! )

对信源进行标量量化，量化至用户给定的量化级和量化范围中(To source for scalar quantification, quantification to users of the given quantitative level and quantitative range )

说明：  l曲线的岭参数估计确定相关参数。。。。。。。。。。。。。。(The ridge parameter estimation of the L curve determines the relevant parameters.)