Due to the asymmetry between the amount of data traffic in the downlink and uplink direction of nowadays and future wireless networks, a proper design of the transceivers in the broadcast channel is inevitable in order to satisfy the users’ demands on data rate and transmission quality. This book deals with the optimi- zation-based joint design of the transmit and receive filters in a MIMO broadcast channel in which the user terminals may be equipped with several antenna ele- ments.
上传时间： 2020-05-28
上传用户：shancjb
Electrostatic discharge (ESD) phenomena have been known to mankind since the Greek Empire when Thales of Miletus, one of the Seven Sages of Greece, noticed the attraction of strands of hay to amber, leading to the coining of the word “electron.” Electrical discharge and the guiding of electrical discharge (e.g., lightning) was of interest to Benjamin Franklin in the 1700s, with the invention of the lightning rod. The lightning rod was mankind’s first effort to guide the electrical discharge current of a lightning strike in a direction that would not harm structures.
标签： Circuits Devices 2015 ESD and
上传时间： 2020-06-05
上传用户：shancjb
This book is intended for researchers, teachers, and students willing to ex- plore conceptual bridges between the fields of Automatic Control and Power Electronics. The need to bring the two disciplines closer has been felt, for many years, both by Power Electronics specialists and by Automatic Control theorists, as a means of fruitful interaction between the two scientific com- munities. There have, certainly, been many steps given in that direction in the last decade as evidenced by the number of research articles in journals, special sessions in conferences, and summer courses throughout the world.
标签： Techniques Control Design
上传时间： 2020-06-07
上传用户：shancjb
Modern day large power systems are essentially dynamic systems with stringent requirements of high reliability for the continuous availability of electricity. Reliability is contingent on the power system retaining stable operation during steady-state operation and also following disturbances. The subject of power sys- tem stability has been studied for many decades. With new developments, and there have been many over the past couple of decades, new concerns and problems arise that need to be studied and analysed. The objective of this book is a step in that direction though not ignoring the conventional and well-established approaches.
标签： Modelling Stability System Power
上传时间： 2020-06-07
上传用户：shancjb
This book is based on a Ph.D. research that has been conducted at the Delft University of Technology in the Netherlands in collaboration with Dutch Electricity & Gas Distribution Network Operator, Stedin. This book was written as a result of wider interest that was shown by different industry groups on this topic after its public defence. This inspired the author to modify and publish a practical version of the research for a greater international audience. Therefore, the content of this book is intended for a double audience, on the one hand for those interested in the organisational and management aspects of maintenance.
标签： Maintenance Electricity Risk-Based Network for
上传时间： 2020-06-07
上传用户：shancjb
将图片转化为double数据类型，再利用T=dctmtx(8)建立一个8*8的DCT变换矩阵。将图片分割为8*8的小块，分别对小块进行各自的DCT变换。变换的矩阵可调用函数dctmtx，得到余弦基函数作为变换基T。T*B*T’是变换的操作，得到DCT变换系数矩阵。接着按照实验要求，将 DCT 系数矩阵中值小于给定阈值的元素置为 0。这样就完成了DCT变换。进行逆变换时，直接用T’*B*T得到结果矩阵，转化为图像形式
标签： MATLAB
上传时间： 2020-07-07
上传用户：
AT89S52-24单片机最小系统开发板ALTIUM设计硬件原理图+PCB文件,2层板设计，大小为121x149mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你的产品设计的参考。主要器件型号列表如下：Library Component Count : 14Name Description----------------------------------------------------------------------------------------------------AT89S52-P 8 位微处理器/40引脚CAP CapacitorCAPACITOR POL CapacitorCRYSTAL CrystalD Connector 9 Receptacle Assembly, 9 Position, Right AngleHeader 2 Header, 2-PinHeader 4 Header, 4-PinHeader 5X2 Header, 5-Pin, Dual rowLED MAX232PZ_9 排针——9RES2SW-DPST Double-Pole, Single-Throw SwitchSW-PB Switch
上传时间： 2021-11-17
上传用户：
AT89S52单片机主8入8出继电器工控主板ALTIUM设计硬件原理图+PCB文件,2层板设计，大小为121x149mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你的产品设计的参考。主要器件型号列表如下：Library Component Count : 25Name Description----------------------------------------------------------------------------------------------------24LC02AJKG 按键开关AT89S52-P 8 位微处理器/40引脚CAP CapacitorCAPACITOR POL CapacitorCPDR 瓷片电容CRYSTAL CrystalD Connector 9 Receptacle Assembly, 9 Position, Right AngleDG 电感DJDR 电解电容GO 光耦Header 5X2 Header, 5-Pin, Dual rowJDQYCK 继电器——1常开1常闭LED 发光二极管LM2576HVT-3.3 Simple Switcher 3A Step Down Voltage RegulatorMAX232 NPN NPN Bipolar TransistorPZ_2 排针——2PZ_3 排针——3RES2Res 电阻Res PZ_8 8位排阻SW-DPST Double-Pole, Single-Throw SwitchWY2JG 稳压二级管ZL2JG 整流二极管
上传时间： 2021-11-17
上传用户：kingwide
在全球气候变暖和石油资源短缺的形势下,推动新能源汽车的发展将成为汽车行业一种新的发展方向。在大力发展新能源电动汽车行业的同时还应兼顾电动汽车充电设施的发展,因此对电动汽车充电桩的设计与研究显得十分必要。对电动汽车直流充电桩的硬件系统进行设计,主要的硬件电路包括安全监测电路、总压采集电路、温湿度检测电路、语音电路。软件包括主要流程图和温湿度检测流程图。Under the situation of global warming and shortage of petroleum resources,promoting the development of new energy vehicles will become a new development direction for the automotive industry.While vigorously developing the new energy electric vehicle industry,we should also take into account the development of electric vehicle charging facilities.Therefore,the design and research of electric vehicle charging piles is very necessary.The hardware system of the electric vehicle DC charging pile is designed.The main hardware circuits include safety monitoring circuit,total voltage collecting circuit,temperature and humidity detecting circuit,voice circuit and CAN communication.The software includes a main flow chart and a temperature and humidity detection flow chart.
标签： 电动汽车
上传时间： 2022-04-03
上传用户：jason_vip1
Low Power Double Data Rate 3（LPDDR3） JEDEC官方标准共158页。
上传时间： 2022-04-12
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