untitled

spi接口的vhdl实现，所用器件和ip为xilinx的-spi interface VHDL realize, by ip for Xilinx devices and the

说明：  basic electrical assignment questions

说明：  windows命令行工具，Wgrib2提取Grib数据(Windows command line tool, wgrib 2 extracts grib data)

说明：  matlab在时序分析中的应用经典书籍 帮助初学者了解仿真过程(Application of classic books in timing analysis to help beginners understand the simulation process)

说明：  在矩形方框中随机生成半径不同的圆，用于模拟多孔介质(Randomly generate circles with different radii in rectangular box to simulate porous media)

说明：  此有限元英文书籍讲述了有限元基础，并在每章后面编制有对应的MATLAB；MAPLE程序，很好的与前面的有限元理论结合。很适合有限元的初学者。(This English finite element book describes the foundation of finite element, and at the end of each chapter, the corresponding MATLAB; Maple program is compiled, which is well combined with the previous finite element theory. It is very suitable for beginners of finite element.)

提供一个遗传算法C++类-provide a genetic algorithm C

说明：  首先介绍结构模态在结构损伤识别中的应用，对模态置信度和柔度置信 度进行了相关性研究。其次讲述了单目标函数粒子群优化算法的基本流程，通过 一简支 T 梁，以基于模态置信度和柔度置信度的两种单目标函数进行结构的损伤 识别。通过对比，发现两种单目标函数的优缺点。紧接着将上述两种指标同时利 用，构建相关的目标函数。利用灰色理论中的关联度，将两目标函数粒子群优化 算法转化为单目标函数粒子算法，进行结构的损伤识别。结果表明相对于与单目 标函数，前者识别效果更好，更能精确进行结构的损伤识别。最后以实验室组合 T 梁为研究对象，在不同损伤工况条件下，将灰色粒子群算法应用其中，进行梁的 损伤识别，发现识别区域与裂纹的分布情况大致相符。(Particle swarm optimization)

This library is free software you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version

计算球顶圆锥的RCS程序，输入频率和角度，球锥的外形尺寸等，得到其RCS。这个程序是俺老师给的，只供参考-calculated cone-top RCS procedures input frequency and angle of the cone-shape size, to be its RCS. The program is the teacher I have for the use of reference