re-isa

hfss设计的功分器，结构简单，易于实现，我相信对初学者会游有用( a new creative guide book on how to creat a new kind of antenna,i am sure it is helpful)

适用于音频过采样DAC的插值滤波器的设计 一种通用便携式数字音频系统sigma-delta DAC中的插值滤波器。(Over-sampling DAC for audio interpolation filter design a general-purpose portable digital audio systems in the sigma-delta DAC interpolation filter.)

模块化的航空发动机模型，可以加入到simulink中(The modular aero engine model can be added to Simulink.)

以双向DC-DC变换器为例，通过双向控制模型的分析，采用PID 补偿环节的单电压闭环实现了BDC系统闭环稳定。(Bi-directional DC-DC converter, for example, through the analysis of the two-way control model, the single-voltage closed-loop PID compensation link to achieve a the BDC system closed-loop stable.)

OPC历史数据访问服务器的研究与开发硕士论文,对于学习了解OPC技术规范及开发基于OPC的工业实时历史数据库的应用软件有非常大的帮助.(Research and Development Thesis OPC Historical Data Access Server, learn about OPC technology for the development of applications based on software specifications and OPC industrial real-time historical database has a very big help.)

开关磁阻电机模糊PI控制的程序，用以控制12、8的电机。(Switched Reluctance Motor fuzzy PI control procedures to control 12,8 motors.)

SP200S的的51烧录器资料和程序，还有原理图(51 of SP200S burner information and procedures, as well as schematic)

i need the matlab coding for pid controller using particle swarm optimization

说明：  电力方面配电网重构方面的资料，详细介绍了配电网重构的存在的问题，应用的方法，文章大多为硕博论文，比较详尽，是这方面学习的好资料(Electricity distribution network reconfiguration information, details of the distribution network reconfiguration problem, the application of the method, the article mostly papers, more detailed study in this regard the good information)

关于s变换的和反变换代码，也是做毕业论文时搜到的，希望大家没能用到(A basis for efficient representation of the S-transform invert S-transform ,also have some examples)