Calculator

该源代码是模式识别课程作业。通过K平均算法实现聚类的目的。效果比较好。另外本人还设计了等高线法，用于聚类，思想较好，效果一般，但是值得参考。(This code is a Pattern Recognition homework. It use Kmeans to clustering, and get a good result. It s good for a reference.)

this file is to solve the problem of the tridiagonal and banded systems

this file implement closed form method in pattern recognition

ofdm信号的仿真程序，接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档(ofdm simulation)

this program will help you to perform spectral estimation using different algorithms such as spectogram

短时傅里叶变换的Matlab程序代码，短时傅里叶变换时最经典的时频分析方法(Matlab code short time Fourier transform, short-time Fourier transform of the most classic time-frequency analysis)

说明：  程序是用C和Isight软件对DEJong测试函数进行计算。详情请见说明(Program is matlab and Isight software DEJong test function to calculate.)

PSO based algorithm for induction motor control

MATLAB环境下的Simulink仿真平台，构建PCM编码与解码电路图，对模拟信号进行采样、量化、编码, 将编码后的信号输入信道再进行PCM解码，还原出原信号.建立仿真模型,分析仿真波形。(MATLAB environment Simulink simulation platform to build PCM encoding and decoding circuit diagram of the analog signal is sampled, quantization, encoding, the encoded signal input letter Road and then the PCM decoding, restore the original signal. Establish simulation model, analyze simulation waveforms.)

说明：  跳频通信的matlab文件,对学习扩频通信有很大的帮助 (fhss introduction made in matlab)