Huffman

取音频左声道，并画出音频幅值频谱及频率能量图(Take the audio left channel, and draw the the audio amplitude spectrum and frequency energy diagram)

在研究了超高速OFDM系统传输模型的基础上，对OFDM系统的传输信号结构进行了分析，结合传统的多普勒频移算法，用OFDM信号循环前缀所包含的相对频偏信息设计了实时性较好的多普勒频移估计方法，并分析了多径效应对于循环前缀数据的“污染”效应，对该算法进行了优化，提高了算法的频移估计性能，并对该算法进行了性能验证。(Based on the study ultra-high-speed transmission of OFDM system model, the OFDM signal structure for the transmission system is analyzed, combined with traditional Doppler shift method, the relative deviation OFDM signal with cyclic prefix information contained in the real-time design Doppler shift better estimation methods, and analyzes the " pollution" effect of multipath effects for cyclic prefix data, the algorithm has been optimized to improve the frequency estimation algorithm performance and the performance of the algorithm verification.)

MATLABxct经典仿真程序设计源码MATLABxct classic simulation programming source code(MATLABxct classic simulation programming source MATLABxct classic simulation programming source code)

产生噪声调幅干扰信号，并画出时域和功率谱 (AM interference signal noise, and draw the time domain and power spectrum)

《MATLAB小波分析（第2版）》张德丰源代码下载(" MATLAB Wavelet Analysis (2nd Edition)" Zhang Defeng Source Codes)

FS_IOC_FIEMAP ioctl infrastructure.

matlab数学建模 （李昕）清华大学出版社 全书附带源码(The Chinese book of "Matlab Mathematics Modelling" from Tsinghua University Press original code.)

This code use Principle Component Analysis(PCA)for feature extraction

解决图论中最短路问题的最好方法--“Dijstra算法,”通过解析实例模型,对模型算法进行描述、拓展,并给出了求最短路以及求最短路长的MATLAB程序,此程序具有通用性。(The best way to solve the shortest path problem in graph theory is- "Dijstra algorithm," by parsing instance model, the model describes the algorithm, expand, and gives the shortest and seek seek the shortest length of the MATLAB program, this program has versatility.)

finite element method code