risk456_2

一个pi/4-DQPSK的仿真程序，GUI界面，可以计算误码率(a pi/4-DQPSK simulation program, GUI interface, the error rate can be calculated)

该文件是kohonen网络聚类算法的源程序，最初用于网络入侵聚类分析，已测试成功(This file is the source kohonen network clustering algorithm, originally used for network intrusion cluster analysis, have been tested successfully)

MATLAB program of v/f control of ac machine

The timing_recovery_1.mdl uses Simulinks variable step solver to create a continous time QPSK signal with both carrier and symbol rate errors. This is a relativly straight forward approach, but is computationally expensive. The sescond model, timing_recovery_2Q.mdl uses a purely discrete time approach using the same fractional sample delay approach as does the receiver. This can run much faster.

说明：  Matlab Docs from WWWWWWW

说明：  使用自编函数基于奇异值分解总体最小二乘法（svd-tls）实现AR模型谱估计 (The use of self-functions in general based on singular value decomposition least square method (svd-tls) to achieve AR model spectrum estimation)

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.

液位和高度的控制，具有很小的误差，操作简单(Level and degree of control, with little error, simple operation)

代码给出高斯和瑞利等几种信道模型的仿真方法，代码规整，设定简单清晰(present an overview of a statistical channel model)

matlab在振动信号分析中的应用，主要关于信号生成，时域频域分析以及试验模态识别(matlab in vibration signal analysis, mainly on the signal generation, time domain and frequency domain analysis of experimental modal identification)