codes_for_communications

这是一本关于matlab求解微分方程的指导文档(This is a guide on matlab to solve differential equations documents)

矩量法分析 半波阵子天线 电流分布 方向图(mom dipole current distrubution pattern simulation )

MATLAB simulation of 3-phase PWM rectifier. Sine PWM is used as modulation technique. Modulation index is 0.8.

Voice Activity Detection (ref: Sabiner&Rhambur)

说明：  基于小波变换的二进制相移键控系统，BPSK信号检测 (Wavelet-based binary phase shift keying system)

改程序是经典的模态识别程序，基本包括了所有的模态识别方法，包括prony法、era发、频域分析法，还具有有限元分析等功能，对模态分析特别有帮助。(Reform program is the classic modal identification procedures, including all of the basic modal identification methods, including prony law, era hair, frequency domain analysis, also has features such as finite element analysis, modal analysis of particularly helpful.)

小波包进行信号去噪的m文件，在matlab中可以直接调用(Wavelet packet signal de-noising m file in matlab can be called directly)

Calculation of one or more satellites and output character codes in the binary and octal numbers

高阶循环累积量对信号进行识别，该文件代码完整，适合学习，可以直接更改来识别信号(Order cyclic cumulants of the signal recognition, the document code integrity, for learning, you can change to identify the signal directly)

说明：  通过拟合计算Qa，对较多的地理数据分析比较有用(By fitting the calculated Qa, geographic data analysis on more useful)