chap4

介绍了一种构建在定点DSP上的高速瑞利衰落信道仿真模型。通过应用确知性瑞利过程的理论，使得仅需要较少的低频正弦波分量以及简单的运算即可实现较高精度的信道建模；进而可采用查表法并结合TMS320C6202定点数字信号处理器的高并行性和处理能力构造高速的仿真模型(Construction of a fixed-point DSP in the high-speed Rayleigh fading channel simulation model. Through the application process unascertained Rayleigh theory, only need to make small low-frequency sine wave components and the simple operation can achieve higher accuracy Channel modeling; then use look-up table method and combination TMS320C6202 fixed-point digital signal processor parallel and can handle Construction of the high-speed simulation model)

用于进行AM、PM、 FM调制的运算并且画图(AM, PM, FM modulation is used for the operation and drawing)

Two dimensional bilateral filtering for colour images

face detection by matlab

............Two dimensional plot

说明：  LD算法，实现信号的分析，频谱分析，避免矩阵的求逆运算(failed to translate)

Magnetic resonance (MR) images can be used to detect lesions in the brains of multiple sclerosis (MS) patients and is essential for diagnosing the disease and monitoring its progression. An automatic method is presented for segmentation of MS lesions in multispectral MR images. Firstly a PD-w image is subtracted its corresponding T1-w image to get an image in which the cerebral spinal fluid (CSF) is enhanced. Then based on kernel fuzzy c-means (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented respectively to extract the CSF region and the CSF combining MS lesions region. A raw MS lesions image is obtained by subtracting the CSF region CSF combining MS region. By applying median filter and thresholding to the raw image, the MS lesions are detected finally. Results are quantitatively uated on BrainWeb images using Dice similarity coefficient (DSC). Finally, the potential of the method as well as its limitations are discussed.

用matlab语言描述了列车的牵引、制动等过程，给列车方向研究的伙伴们提供个参考(introduce the method of train traction and brake in the process of its running in the tunnel)

车辆四分之一模型的matlab/simulink仿真，包含主动悬架的simulink控制器搭建(Matlab / Simulink simulation of vehicle quarter model, Simulink controller construction including active suspension)

说明：  有限元的热代码，希望大家下载学习，分享给大家(fenite elment method thremo code to everyone study)