ndd1

描述如何仿真海底混响的文章，包括算法和原理(Articles describe how to simulate the bottom reverberation, including algorithms and principles of)

This code contains the hilbert envelope method for extracting modal properties

说明：  基于端射阵的平面阵列方向图研究，对端射阵进行优化，采用遗传算法。(Planar array of end-fire array pattern study based on the end-fire array is optimized using genetic algorithms.)

relay oscillation method of pid tuning using matlab

16-QAM modulator and demodulator

结构拓扑优化 99行matlab代码 结构优化(99 line topology optimization code structure optimization matlab)

应用matlab_simulink搭建模块进行电路仿真，欢迎大家学习！！(matlab_simulink)

这是matlab的50道练习题，可以方便初学者进行自我检测，基本上这些题会做，matlab也就没有多大问题了。(This is a matlab 50 exercises, beginners can easily be self-testing, basically these questions will do, matlab there is no big problem.)

一个很简单的m序列产生过程，很容易掌握的。(m-sequences generated by matlab procedures, good procedures, hard to find, and can be downloaded.)

手机定位中基于TDOA技术的多种算法的性能比较仿真(TDOA mobile location technology based on performance comparison of a variety of simulation algorithms)