Physical-Layer-Network

数字图像处理的一些资料，希望对大家有点帮助！(Digital image processing of some information I hope all of us a little help!)

SNR largest independent component analysis algorithm, Fractal dimension calculation algorithm matlab code blankets, Target can be extracted in a picture you want.

说明：  这是有关相控阵的书籍，介绍很全面而且翔实，有关超声发射和聚焦方法介绍等(This is a book about phased arrays, the introduction is very comprehensive and informative, about the introduction of ultrasound transmission and focusing methods, etc.)

说明：  采用Laser - PVDF 实验系统对纳米AlP/ SiO2 中激光超声信号进行采集. 利用小波的多尺度分解、重 构和消噪功能,提取出直达波及其反射回波,测量了时间间隔和纳米AlP/ SiO2 的纵波声速. 结果证明小波变换 的方法能有效地处理复杂激光超声信号.(Using Laser- PVDF experimental system of nano-AlP/SiO2 Laser ultrasonic signal acquisition. Using wavelet multiscale decomposition, reconstruction and de-noising function, extracted from direct wave and its reflection echo measured time interval and nano-AlP/SiO2 of the longitudinal wave speed of sound. wavelet transform results show that the method can effectively deal with the complexity of laser ultrasonic signals.)

说明：  吴镇扬老师的数字信号处理教材，内容简介明了，是东大考研的必备材料。也是技术人员学习的重要参考资料。(Zhen-Yang Wu teacher' s digital signal processing textbook, Introduction to understand, is the essential material of Tokyo Entrance Examination. Technical staff is also an important reference for learning.)

该文档是数字通信第五版的课后答案，英文版的答案(This document is the answer to the fifth edition of digital communication after class and the answer to the English edition.)

Fundamentals of wireless communications

一些黑客毁坏别人的文件甚至整个硬盘，他们被称为电脑狂人（crackers）或计算机破 坏者（vandals）。另一些新手省去学习技术的麻烦，直接下载黑客工具侵入别人的计算机， 这些人被称为脚本小子（script kiddies）。而真正有着丰富经验和编程技巧的黑客，则开发黑 客程序发布到网站或论坛（BBS）。还有一些人对黑客技术没有丝毫兴趣，他们把计算机仅 仅当做窃取金钱、商品和服务的辅助工具。(Some hackers destroy other people)

并网逆变器的虚拟同步发电机控制技术的一些资料(Grid-connected inverter virtual synchronous generator control technology of some information)

Ansys裂纹扩展程序 通过调用APDL模拟裂纹扩展过程(Ansys crack simulation)