TP2_BTI

说明：  matlab实现对声音信号短时能量，短时过零率的计算。(matlab voice signals to achieve short-term energy, zero-crossing rate of short-term calculations.)

说明：  实现地月轨道的模拟以及计算，讨论了卫星有地球到月球的变轨过程。(a discrible of the way to moon)

语音信号处理中，高通滤波器的设计，实现效果比较好的(Speech signal processing, high-pass filter design, to achieve better results)

it is useful to my research work

It describes the music play with matlab

杜芬系统受迫振动的数值解，及位移与速度分岔，非线性振动初学者可以参考。(Numerical Solution of Duffing system by forced vibration, displacement and velocity and bifurcation, nonlinear vibration beginners can refer to this file.)

说明：  matlab 小波分析-张丰德 这本书里所有的源代码(matlab wavelet analysis- Zhang Fengde this book all the source code)

计算偶极子天线几何尺寸以及各个偶极子之间的参数(Calculation of the dipole antenna geometric size)

平面波在介质中的传播，边界条件位pml。平面波在介质中的传播，边界条件位upml(Plane wave propagation in the medium, the boundary condition bit pml)

network security algorithm ceasar cipher codes, simple implementation