shuangkui002

This program generates rayleigh fading signal.

利用matlab模拟菲涅尔全息何用傅里叶变换实现单射光衍射(The use of the matlab simulation Fresnel holographic What Fourier transform single shot-ray diffraction)

动态中继选择和功率分配策略，讨论在不同策略下的功率分配，寻找能使总的功耗最小的方法。(Dynamic relay selection and power allocation strategies discussed in different power allocation strategies, seeking to make the total power consumption is minimal approach.)

即奇异谱分析，广泛应用于信号识别与预测。(SSA, that singular spectrum analysis, widely used in signal recognition and prediction.)

OFDM信号的编码译码仿真，英文说明更详细。(This simulation script set allows for an OFDM transmission to be simulated. Imagetx.m generates the OFDM signal, saving it as a windows WAV file. This allows the OFDM signal to be played out a sound card and recorded back. Imagerx.m decodes the WAV to extract the data. settings.m contains all the common settings to specify all the simulation parameters such as FFT size, number of carriers, input data source file, input and output WAV files, etc. See settings.m for more details. Note: The both the receiver and transmitter must have a copy of the input data file, as this is used for calculating the exact number of data words in the transmission. The scripts should work as extracted. Just run imagetx.m to generate the OFDM signal. Then run imagerx.m to decode the signal. The initial settings transmit a wave file Corrs.wav . The decoded OFDM data ( Out.wav ) can be compared with the original data by listening to the two wave files.)

MATLAB的GUI调用进行图像处理 边缘检测(MATLAB GUI call for image processing edge detection)

matlab工具箱应用简介，希望能有所帮助 (matlab toolbox application profile, hoping to be helpful)

完成傅里叶的变换，将时间域的信号转换到频率域(The complete Fourier transform converts the signal of the time domain to the frequency domain)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

说明：  Vibe背景建模的方法检测视频中的运动物体，包含matlab源代码(Vibe background modeling method detects moving objects in video, including matlab source code)