ifft

说明：  双容水箱液位控制系统是一种采用先进的控制算法完成对液位的控制的系统, 它在食品加工、原油提炼、化工生产等诸多实用行业中都有广泛使用。本次设计中, 要求设计的超调量小，调节时间短和有自平衡能力等优点。首先要掌握生产工艺和控制流程的基本知识，选择合适的仪表。然后进行系统的设计，明确被控对象，并对系统中每个原件进行模型建立；根据系统要求选择合适的控制方法，对控制器进行参数整定。我们将充分利用计算机技术结合自动控制技术实现对水箱水位的精确控制。(Dual-capacity water tank level control system is a system using advanced control algorithm to complete the control of liquid level, which is widely used in food processing, crude oil refining, chemical production and many other practical industries. In this design, the design requires a small amount of overshoot, short adjustment time and self-balancing ability and other advantages. First of all, we should master the basic knowledge of production process and control process, select the appropriate instrument. Then the system is designed, the controlled objects are identified, and each original in the system is modeled, and the appropriate control method is selected according to the requirements of the system to set the parameters of the controller. We will make full use of computer technology combined with automatic control technology to achieve accurate control of water tank level.)

对测量到的目标位置数据（称为点迹）进行处理，自动形成航迹，并对目标在下一时 刻的位置进行预测。本文简要讨论了用Kalman滤波方法对单个目标航迹进行预测，并借助于Matlab仿真工具，对实验的效果进行评估。(Processing the measured target location data (called dots), automatically forming tracks, and aiming at the next target.The location of the engraving is predicted.)

LED点阵显示牌的设计与动态显示控制3.PDF-q

关于西门子s7—200系列的课件，主要介绍了他的编程及工业中的应用(About Siemens s7-200 series of courseware, the main introduction of his programming and Industrial Application)

自学LinePipe 入门例子（NER,包含字典，正则表达式）(Self learning LinePipe introductory example (NER, including dictionary, regular expression))

说明：  模式仿真，用于脊型波导，供大家学习使用参考，希望能有帮助(Mode simulation, used for ridge waveguide, for your reference, hope to be helpful)

说明：  三相PF仿真，真实可用，采用克拉克变换和帕克变换，核心SVPWM控制策略，控制简单，有助于新手工程师学习。(Three phase pf simulation, real and available, using Clark transform and Parker transform, the core SVPWM control strategy, simple control, help novice engineers learn.)

给学习滑动DFT的师弟师妹们，提供一个参考。(To study the sliding DFT Shidishimei, provide a reference.)

三维LBM可压缩方腔模拟流体受到作用力以后流场的变化情况(Three dimensional LBM compressible square cavity simulation flow)

SqlServer版Delphi 进销存系统源代码，一个Delphi数据库系统编程技巧书中的随书实例，好像是Delphi数据库开发经典安全解析一书的例子，放在这里供Delphi新手学习参考吧，一个销售、进货管理【进库】、库存管理为一体的系统，一个典型的数据库系统开发实例。