aBookOfMatlab

This text deals exclusively with signal processing of digital data, although Chapter 1 briefly describes analog processes commonly found in medical devices. This text should be of interest to a broad spectrum of engineers, but it is written specifically for biomedical engineers (also known as bioengineers). Although the applications are different, the signal processing methodology used by biomedical engineers is identical to that used by other engineers such electrical and communications engineers. The major difference for biomedical engineers is in the level of understanding required for appropriate use of this technology. An electrical engineer may be required to expand or modify signal processing tools, while for biomedical engineers, signal processing techniques are tools to be used.

matlab 三维显示。所有代码都有。可以显示三维网格。(three-dimensional display matlab. Have all the code. Can display three-dimensional grid.)

说明：  低密度码信道编译码算法，程序有信道模拟，matlab语言实现，主要研究规则低密度码(channel low-density code encryption algorithm, the procedure channel simulation, Matlab language, the main rules of low-density code)

this is the matlab code for a simple PLL circuit "Phase Locked Loop"

应用PCA进行特征提取和降维，可以应用于数据挖掘，机器学习，人脸识别上！(Application of PCA for feature extraction and dimensionality reduction can be applied to data mining, machine learning, face recognition on!)

当物体表现出最讯息时有最大的乱度。 当Entropy最大，影像有最大的讯息。(objects displayed at the most messages have the greatest degree of chaos. When the maximum entropy, images have the greatest message.)

在matlab环境下，实现加密解密算法中的DES算法的源代码，以及GUI界面的生成(In the matlab environment, the realization of encryption decryption algorithm of DES algorithm source code, and the generation of GUI interface)

说明：  这是一个matlab小程序,可用于求解微分方程,特别是抛物型的微分方程(Matlab This is a small program that can be used to solve differential equations, in particular the type of parabolic differential equations)

DS扩频通信DS spread spectrum communicationDS spread spectrum communication(DS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communicationDS spread spectrum communication)

附件1是关于FFT算法的详细编程，及详细原理讲解，个人认为，这篇论文对从事信号处理，频谱分析很有帮助，特使是进一步理解FFT算法，很有必要阅读。 程序+原理+运行！ 附件2是关于直接运行FFT工具箱进行频谱分析，请大家可以参考对照，对理解FFT算法肯定有帮助！ (matalb fft 频谱分析)