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一种振动时效数据采集系统的软、硬件设计方案，采用labview作为开发平台。振动时效能够很好地消除铸、锻、焊件的残余应力，是一种新型的时效技术。(The software and hardware design of a vibration aging data acquisition system is designed by using LabVIEW as the development platform. The vibration aging can eliminate the residual stress of the cast, forging and welding parts well, and it is a new kind of aging technology.)

这次上传的代码是关于特征提取的主要算法之一：ica，其比pca要好(this code is uploaded on the main feature extraction algorithm : ica, better than the PCA)

设计了一种新颖的三相锁相环的设计算法，可以用于不平衡电压的相位检测和跟踪。(A modified soft phase lock loop algorithm improving the performance inDynamic phase tracking and detection of unbalanced voltage)

有关参加全国大学生电子设计竞赛培训的一些情况介绍(Some related to take part in the national undergraduate electronic design contest training was introduced )

本文致力于研究和开发一种成本低、结构紧凑、操作方便的自动捆扎机。主要工作是根据实际的捆扎工艺，设计了捆扎机的总体结构；然后对捆扎工艺中的关键技术进行了深入研究，设计了机电一体化机构，运用PLC编程来实现控制系统，最终实现捆扎，转动，推箱等动作。本设计为快速方便的实现十字形捆扎提供了一种可靠的装置。( The major work is designing the overall structure of Automatic Strapping Machine according to the actual bind process. Then the key technologies of the labeling are studied, design a mechanism of electromechanical integration, use of PLC programming to achieve control system. Finally, Realize binding, rotating, pushing the carton and other movement. This designed a rapid realization of cross Banding mahchine.)

主要是全国研究生数学建模大赛的优秀论文，还有些美赛的，本科生的(Mathematical modeling of the main competition is the outstanding graduate student papers, and some U.S. race, undergraduate)

在电网电压频率波动或者三相不平衡的情况下,硬件锁相很难准确检测到基波正序的相位。在结合PWM整流器空间矢量解耦控制算法的基础上,将软件锁相环技术应用在PWM整流器控制系统中,并用仿真和实验验证了该方案的可行性。实验结果表明,该方案解决了电网电压频率波动及三相不平衡时的相位同步等问题,并在工程上具有一定参考价值。(Frequency or voltage fluctuations in three-phase unbalanced case, the hardware lock is difficult to accurately detect the fundamental positive sequence phase. In the space vector PWM rectifier with decoupling control algorithm based on the software used in the PWM rectifier PLL control system, and use simulation and experimental verification of the feasibility. Experimental results show that the solutions to address the voltage and frequency fluctuations of the phase unbalanced three-phase synchronization issues, and the project has a certain reference value.)

DAQ数据采集基础，介绍数据采集的基本组成，和各元素注意事项。(DAQ data acquisition based on the basic composition introduced data collection, and the elements of note.)

介绍了飞机纵向和横航向控制律设计，给出了设计过程，设计细节作了详细论述(the control law for logititude and direction is introduced , the design process is gived,the design details is demostrated.)

太阳能电池充放电控制器电路图，LM317，过压比较(Solar battery charge and discharge control circuit)