firstderivative

用matlab来仿真ofdm调制算法，ofdm技术用于4G无线通信系统。(Ofdm simulation using matlab to modulation algorithm, ofdm technology for 4G wireless communications systems.)

assmbly fot gears motor

利用卡尔曼滤波技术实现动态GPS数据处理(Kalman filtering technique to achieve dynamic GPS data processing)

本程序是专家pid控制的M文件，方便读者使用，控制效果很好(This program is an expert pid control of M-file for easy use, the control works well)

THIS BOOK FOR OBJECT ORIENTED SOFTWARE ENGINEERING

适用于matlab环境的源代码，主要可以实现降噪等功能(Matlab environment applicable to the source code, the main features such as noise reduction can be achieved)

AIC BIC信息准则的二十一，。。。。。。。。。。。。。(aic bic)

％ DYNMODES calculates ocean dynamic vertical modes ％ taking a column vector of Brunt-Vaisala values (Nsq) at ％ different pressures (p) and calculating some number of ％ dynamic modes (nmodes). ％ Note: The input pressures need not be uniformly spaced, ％ and the deepest pressure is assumed to be the bottom.( DYNMODES calculates ocean dynamic vertical modes taking a column vector of Brunt-Vaisala values (Nsq) at different pressures (p) and calculating some number of dynamic modes (nmodes). Note: The input pressures need not be uniformly spaced , and the deepest pressure is assumed to be the bottom.)

说明：  通过matlab实现iir bandpass滤波器(iir bandpass)

this is the paramteres of differential equation of the program to optimize the programs of modeling