magical_perl

板波资料和书，里面有瑞利波和lamb波的相关资料(Plate wave data and books)

Ericsson 3G Trial Network Optimization

介绍电烙铁的使用，非常好的资料。值得学习和收场。(introduction of dianlaotie,it very good information of dianlaotie. useful to study and get.)

作者:邓华 人民邮电出版社 本书着重介绍了MATLAB在通信仿真，尤其是移动通信仿真中的应用，通过丰富具体的实例来加深读者对通信系统仿真的理解和掌握。 全书共分10章，前3章介绍MATLAB通信仿真的基础，包括Simulink和S-函数；第4~8章分别介绍了信源和信宿、信道传输、信源编码、信道编码、信号交织以及信号调制的仿真模块及其仿真实现过程；第9章介绍了在通信系统的仿真和调试过程中经常遇到的问题及其解决办法；最后，第10章以cdma 2000为例介绍了移动通信系统的设计和仿真。(Author: Deng Posts & Telecom Press This book highlights the MATLAB simulation in communication, especially mobile communications simulation, through a rich and specific examples to deepen the reader' s understanding of communication system simulation and control. The book is divided into 10 chapters, the first 3 chapter describes the MATLAB simulation-based communications, including Simulink, and S-functions No. 4 Chapter 8 introduced the letter of the source and places the letter, channel transmission, source coding, channel coding, signal interleaving, and signal Modulation of the Simulation Module and Simulation of the implementation process Chapter 9 describes the communications system simulation and debugging process frequently encountered problems and their solutions Finally, Chapter 10, for example, introduced in order to cdma 2000 mobile communication system design and simulation.)

计算机网络第五版： 计算机网络在信息时代中的作用， 因特网概述，网络的网络(Computer network Fifth Edition: the role of computer networks in the information age, Internet overview, network network)

陈长胜用FVCOM模式模拟长江冲淡水的经典力作，JGR的文章，很难得的哦 (Chen Changsheng simulated by CDW FVCOM classic masterpiece, JGR article, hard to come by Oh )

GS1 DataMatrix Introduction and technical overview

永磁同步电动机调速系统由pmsm月吸逆变器、永磁同步电动机和机械负载三部分组成,每个部分都具有非线性特性和参数的不确定性。因为PWM逆变器死区的存在,在低速以及调制频率很高时,死区特性将会导致逆变器输出电压包含很大的谐波分量,使得电机转矩发生很大的 脉动,甚至导致系统的不稳定。有些学者采用变结构控制降低死区的影响,由于变结构控制本身具有抖振现象,这使得所设计的控制器在到达滑模平面之前很容易激起系统的未建模动态,导致系统无法克服逆变器死区的影响。 (A PMSM drive sysetm Consisst of ade-ac inverter,PMSM and sorne meehan iealload.All hteree eom Ponenst of hte syset maerhca racterizedb ymodel swhich aernon linear and eonati nullkllown Parameetrs. )

现代微波滤波器的结构与设计 一本非常经典的书，对从事滤波器设计的朋友很有帮助.(Modern Microwave Filter Design)

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