lam-thu-3D

说明：  ldpc码的基于联合校验—变量处理修正译码算法基础上的改进(the improvement of LDPC code decoding algorithm )

The FDTD code with PML and PEC dounary. There are including the worb repprt.

依次阐述了非线性动力系统的建模，单自由度自治系统、单自由度非自治系统和多自由度系统的分析方法及动力学行为(Turn on the modeling of nonlinear dynamical systems, single degree of freedom autonomous system, single degree of freedom analysis methods and dynamic behavior of the non-autonomous system and multi-degree-of-freedom system)

：随着无线技术的飞速发展，频谱缺乏已经成为一个非常严重的问题．感知无线电技术能有效解 决频谱紧张的现状．介绍了感知无线电概念及其内涵，然后介绍了检测频谱空穴的方法．为提高检测概率、 降低设备复杂度及计算复杂度，将UWB与感知无线电结合，提出了基于能量检测及用户合作（EDAUC）的 协作感知方法．仿真和分析表明：该方法能有效提高检测频谱空穴的概率．(: With the rapid development of wireless technology, the lack of spectrum has become a very serious problem. Cognitive radio technology can effectively solve the spectrum tense situation. Introduced the concept of cognitive radio and its content, and then introduces the method of detection of spectrum holes. To improve the detection probability and reduces the complexity and computational complexity, the combination of UWB and cognitive radio is proposed based on energy detection and user cooperation (EDAUC) the cooperative sensing methods. Simulation and analysis: This method can improve the probability of detection of spectrum holes.)

精通MATLAB数字图像处理与识别 chapter10 代码(Proficient in MATLAB digital image processing and recognition chapter10 code)

快速傅里叶变换在Matlab环境下的实现(Fast Fourier Transform in Matlab environment to achieve)

压电陶瓷的经典模型，preisach 模型(piezoelectric, preisach model)

Contourlet变换的源程序工具，包括图像处理应用的很多程序(Contourlet transform source tools, including image processing applications, many applications)

说明：  用jakes模型进行信道的matlab仿真，并且配有完善的多径瑞利信道(By jakes matlab channel model simulation, and with multi-path Rayleigh channel sound)

一种IMC与PID组合控制的实现，提供matlab源码实现，及simulink实现。(IMC and PID.)