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说明：  深入理解计算机系统（原书第2版）.pdf(In-depth understanding of computer systems (the original book version 2). Pdf)

说明：  目前牵引变压器差动保护原理在某些因素的影响下并不能准确地区分变压器内部故障和外部故障，可能造成保护误动或拒动，危及电气化铁道系统的安全运行。针对这一现状，建立了计及铁芯非线性特性和磁滞效应而又无需铁芯的B－H曲线数据的牵引变压器模型，提出了一种通过参数辩识理论来辩识牵引变压器绕组参数实现牵引变压器微型机保护的方法。该方法能有效地区分内部故障、外部故障和励磁涌流。仿真计算表明了该方法的正确性和可行性。(Traction transformer differential protection principle in the safe operation and can not accurately distinguish between the transformer internal faults and external faults, may be to cause protection mistaken or refuse to move, endangering the electrified railway system under the influence of certain factors. In response to this situation, taking into account the core nonlinear characteristics and hysteresis and without traction transformer core of the B-H curve data model, a the traction transformer winding identification through parameter identification theory parameters to achieve traction transformer microcomputer protection. This method can effectively distinguish internal faults, external faults and magnetizing inrush current. The simulation results show that the correctness and feasibility of the method.)

简单易懂的photoshop学习书籍，欢迎大家下载，适合初学者学习(photoshop study,welcome to download)

windows+cygwin+ns-2.30安装全记录.doc(windows+cygwin+ns-2.30 installed full record. doc)

GLONASS导航系统的ICD文件，技术说明文档(The ICD doc of GLONASS system)

2013年全国大学生电子设计大赛题目汇总 1.A到G为本科组题目 2.J，K，L为专科组题目 (The 2013 national undergraduate electronic design contest title 1. A to G for undergraduate group of subjects 2. J, K, L for specialty group of subjects )

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说明：  从惯性导航原理入手对 OceanMaster 格式数据进行解析，通过软件开发对 OceanMaster 格式数据进行解码，提取各种数据包，并通过紧耦合算法对原始数据进行处理，分别获取三维坐标系下的位置均方差以及位置信息.(This article starts with the principle of inertial navigation for OceanMaster format data parsing,and decrypts the OceanMaster format data,extracts all sorts of data packets and deals with the original data through the correct posture and Kalman filtering method,through which obtains the three dimensional coordinates of position variance.)

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说明：  从南瑞继保某现场技术人员电脑中偷搞的,关于103规约通讯的技术要点.别被南瑞的发现了,阿门!(err)