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matlab函数精心汇总，编程、仿真必备资料。(Matlab function carefully bundled programming, simulation required information.)

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.)

Based on the Matlab script for DFT-S-OFDM with plot

its about the code division multiple acsess and also include some programs for it

目前已经提出了许多不同的算法来解决OFDM 系统中的PAPR 问题，本章详 细介绍了其中的限幅法、压缩扩张法、星座图扩展法、选择性映射法和部分传输 序列法。在介绍每一种算法时，针对其主要存在的问题进行了相应的改进，使每 一种算法都成为比较实用的算法。(Has put forward a number of different algorithms to solve the problem PAPR OFDM system, this chapter details Fine describes one of the limiting, compression expansion method, constellation expansion method, selective mapping method and partial transmission Sequence method. In introducing each algorithm, for which the main problem for the corresponding improvements, so that each An algorithm have become more practical algorithms.)

5 Matlab codes for fluid dynamics in cavity related flows.

斯科特连接（由两相换成三相接线法）的实例，适用于PSCAD建模学习。(This case illustrates SCOTT connection.It s for learning about modeling in PSCAD.)

this file talk about network

操作系统原理与精髓资料 非常经典的教材 第7版的(Operating system principles and essence of information is very classic textbook 7th edition)

安捷伦矢量网络分析仪 -非常好的参考资料，对于掌握仪器的使用，非常有价值，内部资料(Agilent vector network analyzer- a very good reference for the control equipment use, very valuable, internal data)