LSB 翻动以执行隐写术

说明：  用于读写mp3文件的matlab程序，具体使用说明见,压缩文件里的readme文档(This matlab application can read and write mp3 files.The detailed operation guide is contained in the compressed file s readme document.)

matlab编写的声卡采集声音信号并可以播放出来的gui界面。(matlab write sound card and can play sound signals collected from the gui interface.)

空时格码编码器(STTC encoder)

matlab在非线性动力学中的应用，将非线性动力学问题通过matlab程序进行数值计算求解。(matlab application in nonlinear dynamics, nonlinear dynamics numerically solved by matlab program to calculate.)

AM调制和解调的整个过程，同时有频域和时域的波形(The whole process AM modulation and demodulation, while the frequency domain and the time domain waveform)

说明：  用于提取语音每帧的mfcc函数，将数据保存在cell文件中，可以直接使用cell，也可经过变换，提取到表格中使用(The MFCC function used to extract each frame of speech is saved in cell file. Cell can be used directly or transformed to extract the data into tables)

用自相关函数的方法获得语音信号的基频，来识别男女(Baseband, using the autocorrelation function method to obtain a voice signal to identify sexes)

this program stimated the parameterDH of a robot

FSK调制以及解调的仿真matlab程序，里面的代码能够成功实现matlab的调制与解调，能够在matlab运行之后画出相对应的调制波形图以及解调波形图，并且能够显示其中的误码率。

利用PID控制算法实现曲线的拟合跟踪，分别对阶跃曲线和正弦曲线进行控制，并比较拟合的误差曲线(Using the PID control algorithm curve fitting tracking, respectively, on the step and sinusoidal curve control, and compare the error curve fitting)