SPAtest

这是用matlab中的simulink仿真的Nakagami信道，对UWB研究者很有用。(This is in simulink with matlab simulation of Nakagami channel on UWB researchers useful.)

本文提出了一种基于独立分量分析的音频数字水印方法。嵌入水印时,对原始音频文件进行一级小波分解,在分解 得到的逼近分量中利用随机混合方法嵌入水印后进行小波逆变换形成嵌入水印的音频文件。仿真实验结果表明这种方 法的强鲁棒性和可行性。(Abstract:Audio p roduction is one of the important digital multimedias, which transmit becomes more and more convenient. To p revent the multimedia content from being stolen or illegally used, audio content p rotection techniques become increasingly impor2 tant so that the potential of these app lications can be reached. As the importantmethod of copyright p rotection, the digitalwater2 marking technology has been acquired widely recognition and research. This paper p resents a method of digital audio watermark2 ing based on independent component analysis. When embedding watermarking, the original audio is decomposed by single2level discrete 12D wavelet transform, watermarking is embedded by mixing randomly to the app roximation coefficient vector obtained, and the audio is single2level reconstructed receiving audio havingwatermarking. Emulated experiment results show that thismeth2 od is robust and feasible.)

C++,Fortran和Matlab分别实现的bp算法程序(The bp algorithm procedural C++, Fortran and Matlab achieve)

IEEE 802.11ac的发送端代码，用matlab生成，包含发送端的所有模块，至RF前端(IEEE 802.11ac transmitter matlab code)

Some useful matlab codes for digital communication systems

说明：  采用不同的方法对HRV信号进行功率谱估计。选择矩形窗，汉宁窗，汉明窗，Blackman窗(Using different methods of HRV signal power spectrum estimation.Select the rectangular window and hanning window, hamming window and Blackman window)

用simulink建立的直流电机模型，可以用来在电动汽车模拟中运行和分析(The DC motor model established by Simulink can be used in the simulation of electric vehicle.)

四旋翼飞行器自稳控制代码四旋翼飞行器自稳控制代码(4 Aerial Vehicle Stability control code 4 from the homeostatic control code Aerial Vehicle)

近似熵与样本熵的计算程序，还有快速计算样本熵与近似熵的程序(Approximate entropy and sample entropy calculation procedures, as well as the rapid calculation of sample entropy and approximate entropy program)

MATLAB RQA 对离散时间序列进行递归图分析然后再进行定量递归分析，是做混沌研究的一种重要方法！(MATLAB RQA recurrence plot analysis of discrete time series then recurrence quantification analysis is an important method to do chaotic research!)