CRTSⅢ型板式无砟轨道静力学模型

番茄花园WinXP安装教程，安装番茄花园的朋友可以看一下！(Tomato Garden Guide WinXP installation, the installation of tomato garden friends can see!)

该步进电机为一四相步进电机，采用单极性直流电源供电(The stepper motor for the 14-phase stepper motor, using unipolar DC power supply)

CIC补偿滤波器的源代码，有帮助的，好用。没有问题(CIC com filter)

数据库系统课程设计(Database System Design Course)

触摸屏的程序源码。含有头文件及其主程序，已经通过编译，没有错误(Touch-screen program source code. Contains the header files and the main program has been through the compilation, no errors)

改程序是郭磊，基于定向二维插值的逆投影变换方法论文中对应的程序，对于学习该篇论文的朋友有一定的帮助。(Guo Lei reform program is based on inverse projection transform paper orientation corresponding two-dimensional interpolation program for learning the papers friends will certainly help.)

HART通用压力变送器的设计压力变送器采用的传感器通常需要不同电路与之配合使用，这就造成产品种类较多，不宜量产。一种崭新的设计思想，设计出的新型电路可以提供软件可控的恒压、恒流输出给传感器，并可以采集两路差分或四路单端输入信号。(HART universal pressure transmitter pressure transmitter used in the design of sensors usually used in conjunction with the different circuits, which result in more product categories, not mass production. A brand new design ideas, to design a new circuit can provide software controlled constant voltage, constant current output to the sensor and can capture two-way differential or four single-ended input signals.)

该文简要说明了JTIDS 的工作方式 , 从JTIDS 系统的数据模型入手 , 完成了包括RS编码 、 交织编码 、 软扩频 、 MSK 调制 、 跳频 、 跳时在内的整个JTIDS 系统仿真(This paper briefly describes the working mode of JTIDS, starting the JTIDS system data model, including the completion of the entire JTIDS system simulation RS encoding, interleaving encoding, soft spread spectrum, MSK modulation, frequency hopping, hopping, )

本规定适用于国家电网公司经营区域内以同步电机、感应电机、变流器等形式接入35kV及以下电压等级电网的分布式电源。(This regulation applies to the national grid company operating in the region access to the synchronous motor, induction motor, inverter and other forms of 35kV and below voltage distributed power grid.)

为了更好地进行谐波和无功功率的补偿与控制，叶FBD(Fryze一Buchholz一DPenbrock)法的定 义进行了完善，并给出了补偿电流检测的直接法和间接法，在三相电力系统中对FBD间接法进行 了推广研究，利用参考电压进行投影变换，不仅可以检测出功率电流和零功率电流，还可以检测出 基波有功电流、基波无功电流、谐波电流以及任意次谐波电流等，大大拓展了FBD法的应用范围和领域。MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。 (In order to improve the performance of active power filter(APF) harmonic current detection method, a harmonic current detection based on FBD(Fryze-Buchholz-Dpenbrock) algorithm was proposed. Reference voltage was generated by phase locked loop(PLL), and load current was projected to reference voltage, and then the active power fundamental current, reactive power fundamental current, harmonic current, fundamental negative sequence current, any harmonic current and so on can be detected accurately by using low-pass filter(LPF), and in the case of distorted voltage, the method was also applicable. The simulation results verify the fast dynamic speed, high detection accuracy, simple implement and good project value of the proposed algorithm. MATLAB simulation results confirm the feasibility and validity of the method.)