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通过使用matlab优化工具箱中的函数fmincon解决有约束的非线性优化问题，有详细的代码过程。(By using the matlab optimization toolbox function fmincon to solve constrained nonlinear optimization problem, has detailed the process code.)

读取和写入segy地震文件，用matlab可以运行(Read and write files segy earthquake)

hht精华讨论 感觉很不错的 要用到hht的朋友可以下来看看 pdf文档哦！！(the hht Digest discuss feeling very good use hht friends can look down )

threshold signcryption based on ecc

说明：  基于matlab的EMD分解算法的源代码，可用于脉搏分析(The EMD-based decomposition algorithm matlab source code can be used for pulse analysis)

说明：  matlab中simulink的使用介绍(Introduction in the use of matlab simulink)

simulation file in matlab simulink

create different noise patterns and then use different filtering methods on them.

说明：  该程序是在matlab中利用窗函数法设计滤波器的示例(The program is using the window function matlab filter design example)

实现一个单相不控的全桥整流器 交流母线电阻R1，直流滤波电容C，负载电阻R(achieve a single-phase control is not a full-bridge rectifier AC Bus resistor R1, DC filtering capacitor C, load resistor R)