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电动汽车有序充电 实现住宅小区内电动汽车有序充电优化模式(ev charge)

介绍了经典的时频分布和检测理论的同时，作者利用时频分布的方法，将一 维时间信号转化到二维的时频空间中，通过提取图像的特征来判决信号和杂波， 采用的数据是使用McMaster IPIX雷达，在加拿大东海岸附近测得的。实测数据 研究表明此方法可以得到很好的检测结果。 (In this paper,we first review the time-frequency analysis and time -frequency-based detection methods.Secondly,by analyzing a mass of the measured data of sea clutter,we show the difference of time-frequency geometric features between echoes with a target and pure sea clutter.Finally,we given the detection algorithm based on the time-frequency geometric features.The results of the measured data show that the proposed method can effectively find low-velocity small targets in sea clutter.This approach is a novel try to detect small targets in sea clutter.)

本此设计主要目的是掌握并验证多址技术的相关内容，不涉及移动业务的相关技术。通过学习CDMA宽带无线通信技术，掌握直接序列扩频通信的基本理论，掌握基于LabVIEW的通信系统基本设计和仿真方法，利用LabVIEW设计一个包括发送模块和接收模块在内的简单CDMA基带通信系统，实现信号的码分多址，扩频发送和同步接收等功能。(failed to translate)

说明：  这是一个关于数字交流电压表的设计方案，详细介绍了硬件及软件设计(This is a study on digital AC voltage meter design, detailed hardware and software design)

双馈变速恒频风力发电系统的空载并网控制策略(Doubly-fed VSCF wind power generation system of no-load and network control strategies)

用MFC做的一个学生信息管理系统，有增加、删除、排序、筛选功能，系统通过ODBC方式连接数据库。 由于文库不支持RAR，故需要完整的程序以及数据库可以联系俺，希望对大家有帮助。 (To do with the MFC, a student information management system, increase, delete, sort, filter functions, the system through ODBC to connect to the database. The library does not support RAR, I therefore need to complete the program and database can be contacted, we hope to help.)

用户用电的数据采集与分析，能对用电用户进行数据采集，然后对这些数据进行统计分析。(users use electricity behavior data collection and analysis,which can collect data from different users and carry on analysis.)

介绍了一种使用马赫-曾德调制器产生毫米波的ROF系统，有仿真验证结果。(Describes a use of Mach- Zehnder modulator generated millimeter wave ROF system, a simulation experiment.)

本压缩包 包含 任务书、论文以及答辩ppt，虽说是课程设计，但是按照毕业设计书写，内容充实 本次课程设计主要是对象湖变的电网进行保护整定，对d1至d6共6个地方进行了最大方式与最小方式运行情况下的短路电流计算。计算完短路电流后，对L1至L5共5条线路进行电流保护整定。但是由于线路较短，线路阻抗较小。经计算后均不适合三段式电流保护。所以采取了纵联差动保护作为主保护，定时限过电流保护作为后备保护。对于变压器，采用纵联差动保护与气体保护共同作为主保护，过负荷保护作为后备保护。(The curriculum design is the object variable grid lake protection setting of D1 to D6, 6 places for the maximum and minimum operation mode under the condition of short-circuit current calculation. Calculation of short-circuit current after the end, L1 to L5 a total of 5 lines of current protection setting. But because of shorter lines, line impedance is small. The calculations are not suitable for three phase current protection. So take a longitudinal differential protection as the main protection, timing and limiting current protection as a back-up protection. For transformers, using longitudinal differential protection and gas protection as the main protection, overload protection as a back-up protection.)