pv_modele2

振动信号时域、频域、倒频域、包络、时频分析，真实可靠，童叟无欺(Vibration signal in time domain, frequency domain and inverted frequency domain, envelope, time-frequency analysis, true and reliable, fair trade)

用matlab实现TFIDF算法,有助于初学者了解关键字提取算法.(TFIDF algorithm using matlab implementation will help beginners understand the keyword extraction algorithm.)

for calculating circle sector

说明：  这是一个重要考验，支持模块，是由前两个模块使用的实用程序。(This is a utility program for significance test, a supporting module that is used by the previous two modules. )

有限元平面刚架结构的分析 matlab程序(Finite element analysis of plane frame structures matlab program)

往复活塞式内燃机关键部件设计、计算、校核的Matlab运行的M文件，本人亲自编写，一定可用！dlm(These M files of Matlab is for designing,computting and checking parts of reciprocating engine. )

在有色输入下，仿射投影算法(APA)由于具有比最小均方(LMS)算法更快的收敛速度和比递归最小二乘(RLS)算法更低的复杂度而受到青睐。(The APA better improves the convergence rate compared with the LMS-type filters, especially in the case of coloured input signals.)

A set of functions to calculate Hu s seven invariant moments. Good accuracy. Written for my Project work

数字信号处理实践方法（第2版）书中有关的代码，很有实用价值(Digital signal processing practices (2nd Edition) book-related code, and very practical value)

CDMA中DSSS直序扩频仿真代码，采用了移位寄存器产生扩频码(DSSS simulation in CDMA system)