Several-nonlinear-control-methods

实现数字图像水印的嵌入与提取，文件分为两个，一个为嵌入，一个为提取(digital image watermarking)

运用压科比矩阵的电力系统潮流计算程序。matlab编程。(Flow calculation)

时域有限差分法的matlab源代码 计算电磁场的各分量(code of the fdtd matlab )

模拟退火算法源程序,希望对大家有帮助，好的话大家多好评(Simulated annealing algorithm source code)

Load flow with newton rphson algorithm m file matlab code

主要是用c语言实现matlab中的fftshift函数的，(Mainly used c language matlab in fftshift function,)

3-level inverter for power electronics applications

1 录入一段语音，对其进行时域频域处理，通过变频、变速达到变声目的，且使处理后的语音信号不影响正常收听与理解。 2 用图形用户界面（GUI）对上述变声前变声后进行时域频域图形输出，不同的频率、速度有不同的输出，且对前后波形进行比较 (1 entry a voice, the frequency domain and time domain by frequency conversion variable speed, processing to make the treatment and voice purpose, after the speech signal shall not affect the normal to listen to and understand. 2 with the graphical user interface (GUI) voice of the above voice before after the frequency domain in the time domain graphics output, different frequency, speed have different output, and compared before and after waveform )

2D lifting wavelet transform 的MATLAB实现方法，适合初学者进行学习。(2D lifting wavelet transform MATLAB implementation method, suitable for beginners to learn.)

an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.