This book is intended for RF planners, to serve as a practical tool in their daily work designing indoor radio distribution systems. Based on feedback from readers of the first edition it was clear to me that I needed to add more material and in depth descrIPtion of the basics of indoor systems based on using repeaters; this has grown into a new Section 4.7. There was also a strong demand to add more detail and dedicate a full chapter to radio planning in tunnels, for both rail and road tunnels; and redundancy principles in the design focus for solving the challenge of handover zones. An entire Chapter 11 is now dedicated to tunnel radio planning.
上传时间： 2020-05-27
上传用户：shancjb
LTE-Advanced becomes a truly global standard for 4G cellular communications. Relay, as one of the key technologies of LTE-Advanced, can significantly extend the coverage, and improve the system throughput. LTE-A standards and tech- nologies were described in several recent books where the limited pages for relay feature prevent the detailed explanations of the technology. In this book, we tried to provide an in-depth descrIPtion of LTE-A relay development. More specifically, significant portions are spent on relay channel modeling and potential technologies during the study item phase of the development, although some of those tech- nologies, such as Type 2 cooperative relay, multi-hop relay, relay with backhaul of carrier aggregation, were not standardized in Release 10 LTE.
标签： LTE-Advanced Technology Relay
上传时间： 2020-05-27
上传用户：shancjb
Wireless means different things to different people. For this book, it refers to the radio systems that provide point-to-point, point-to-multipoint, and Earth-space communications over transmission links that propagate outside buildings through the lower atmosphere. Wireless systems are being built that provide data transmission between computers and other devices on one’s own desk. These are part of the wireless world but not the part where, except for interference perhaps, the atmosphere has any influence. The intent of this book is to provide a descrIPtion of the physical phenomena that can affect propagation through the atmosphere, present sample measurements and statistics, and provide models that system designers can use to calculate their link budgets and estimate the limitations the atmosphere may place on their design.
标签： Communication Propagation Handbook Wireless for
上传时间： 2020-05-31
上传用户：shancjb
The goal of this book is to introduce the simulation methods necessary to describe the behaviour of semiconductor devices during an electrostatic discharge (ESD). The challenge of this task is the correct descrIPtion of semiconductor devices under very high current density and high temperature transients. As it stands, the book can be no more than a snapshot and a summary of the research in this field during the past few years. The authors hope that the book will provide the basis for further development of simulation methods at this current frontier of device physics.
标签： Development Protection ESD
上传时间： 2020-06-05
上传用户：shancjb
The main aim of this book is to present a unified, systematic descrIPtion of basic and advanced problems, methods and algorithms of the modern con- trol theory considered as a foundation for the design of computer control and management systems. The scope of the book differs considerably from the topics of classical traditional control theory mainly oriented to the needs of automatic control of technical devices and technological proc- esses. Taking into account a variety of new applications, the book presents a compact and uniform descrIPtion containing traditional analysis and op- timization problems for control systems as well as control problems with non-probabilistic models of uncertainty, problems of learning, intelligent, knowledge-based and operation systems – important for applications in the control of manufacturing processes, in the project management and in the control of computer systems.
上传时间： 2020-06-10
上传用户：shancjb
全志A20核心板配套开发底板Cadence原理图+ Pads2005格式PCB文件+转换后的AD格式原理图PCB文件：A20_DVK1_BASE_V16_Altium_Designer15.PcbDocA20_DVK1_BASE_V16_BOM_20151015.xlsxA20_DVK1_BASE_V16_Gerber制板文件.rarA20_DVK1_BASE_V16_PADS2005_PCB30.pcbA20_DVK1_BASE_V16_PADS2005_PCB_ASCII.PcbDocA20_DVK1_BASE_V16_PADS9.5.pcba20_dvk1_base_v16_SCH_20151015.pdfA20_DVK1_BASE_V16_元件位置查找图_20151102.pdfA20_DVK1_BASE_V16_原理图_OrCAD16.5.DSNA20_DVK1_BASE_V16_导出到AD格式的原理图和PCBA20_DVK1_BASE_V16_导出到AD格式的原理图和PCB.rarA20_DVK1_BASE_V16_顶层元件编号丝印图_20151102.pdfA20_DVK1_BASE_V16_顶层元件规格丝印图_20151102.pdf主要器件如下：Library Component Count : 58Name descrIPtion----------------------------------------------------------------------------------------------------ANTBATTERY_1BEAD CAPCAP NP 贴片电容,Y5V,6.3V,2.2uF,+80%-20%,0603CAP NP_2_Dup1 X5RCAP NP_Dup2 0402 1uF X5R 6.3V +/-10%CAP NP_Dup3 0402 1uF X5R 6.3V +/-10%CAPACITOR CAPACITOR POLCON1 CON12 CON3 CON4 CON50 CON6CON6A CONNECTOR45X4 C_Generic DB15-VGA_0 DIODE DIODE DUAL SERIESFM25CL64 FR9886SPGTR FUSEHOLDER_0 HDMI19_PLUG HEADER 2 INDUCTOR/SMINDUCTOR_4 C4K-2.5HINDUCTOR_Dup2 INDUCTOR_Dup3 IRM-2638LED_0M93C46_0 MINI USB-B_6 MODULE_CAM_PA0505 PH163539 PLAUSB-AF5P-WSMT_0 PUSHBUTTON_TSKB-2L_0PowerJACK R1 0805 R1_0805 RES2X4RESISTOR RESISTOR_Dup1 RESISTOR_Dup2 RESISTOR_V RJ45_8PGR_Generic S9013SMD_Dup2 SD_MMC_CARD2_0 TP_5 TestPoint_3TitleBlock_Gongjun USBPORT2 USB_WIFI_0 XC6204VZ_3 LDO 3.3V 300mA( SOT-25 )rRClamp0524P
上传时间： 2021-11-08
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The Verilog Hardware descrIPtion Language (HDL) is defined in this standard. Verilog HDL is a formal notation intended for use in all phases of the creation of electronic systems. Because it is both machine readable and human readable,it supports the development,verification, synthesis,and testing of hardware designs; the communication of hardware design data; and the maintenance,modification,and procurement of hardware. The primary audiences for this standard are the implementors of tools supporting the language and advanced users of the language.
上传时间： 2021-11-09
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全志A33核心板应用开发底板OrCAD16.5格式原理图+PADS9.5格式PCB图+转AD格式的原理图PCB文件,可以做你的学习设计参考，应用开发底板主要器件如下：Library Component Count : 180Name descrIPtion----------------------------------------------------------------------------------------------------1_0.5KE100A1_1.5KE100A1_2.5KE100A1_3.5KE100A1_4.5KE100A2N6770_0?_0 ACA-5036 ADV7123_0 ANTANT_0 ANT_1 ANT_2AP6493_0AP6493_1AP6493_2AT24C16 AT88SC0104CAW1625_CSI_eLQFP176_0R0603R1 0805R1 0805_Dup1R1_0805RESISTOR RESISTOR_0RESISTOR_V RT9266PE_0RT9266PE_1 RTL8152B_0 R_0 R_Dup1R_Dup2R_Dup3 R_GenericS9013SMDSD_MMC_CARD2_0 SEW290_0 SEW290_1 SIM_SOCKET_0 SWL-N10S_0SWL-N10S_1 SWPB2X1BSchottkyTC_SMD TP_5TestPoint_3TitleBlock0-AW TitleBlock_Gongjun U-CONN_0USBHOST_X2 USB_WIFI_0WPM4005_11bga280_3 capnp cappoleLQFP176_0 eLQFP176_6 eMMC-BGA169
上传时间： 2021-11-13
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74HC595 A4950 MAX3232 ULN2003AD STM32F207VCT6 AD集成封装库，原理图库器件型号列表：Library Component Count : 53Name descrIPtion----------------------------------------------------------------------------------------------------1N4148 High Conductance Fast Diode1N4448 High Conductance Fast Diode1N914 High Conductance Fast Diode1N914A High Conductance Fast Diode1N914B High Conductance Fast Diode1N916 High Conductance Fast Diode1N916A High Conductance Fast Diode1N916B High Conductance Fast Diode2N3904 NPN General Purpose Amplifier74ALS86 74HC595 8M贴片晶振 A4950 直流电机驱动AO4805CAP CapacitorCAP SMD CapacitorCON2 ConnectorCON2*10 ConnectorCON2*12P ConnectorCON2*7 ConnectorCON2*9 ConnectorCON3 ConnectorCON4 ConnectorCON5 ConnectorCON7 ConnectorCap Pol 极性电解电容DIODE DiodeFUSE1 FuseFUSE2 FuseINDUCTOR2 IRF7351PbF N-MOSJS1-12V-FLED MAX487 MAX809RD R0.125 Less than 1/4 Watt Power Resistor.RES2 RGRPI*4 Res1 ResistorSGM8955XN5G/TR 测量放大器SM712 SN74LV4052AD SP3232ESST25VF016B-50-4I-S2AFI2C Real-Time Clock.STM32F107VTC6 STM32F107VTC6SW DIP-4 编码开关SW-PB SwitchTPS54302 45UA静态电流 3ATVS SMBJ30CAULN2003 XC6214XTAL Crystal OscillatorPCB封装库列表：Component Count : 40Component Name-----------------------------------------------4G模块-外置7D181K0603-LED0603C0603R0805C12061210181232255569-2*1P直针5569-2*2P直针AT-26CAP-D8DO-214AANHSOP-8J-SPDT-5JTAGL
上传时间： 2021-11-15
上传用户：ttalli
基于NE555设计的声音传感器模块ALTIUM硬件原理图+PCB文件，2层板设计，大小为29x30mm，Altium Designer 设计的工程文件，包括原理图及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 : 8Name descrIPtion----------------------------------------------------------------------------------------------------2N3904 NPN General Purpose AmplifierCap CapacitorComponent_1_1 Header 3H Header, 3-Pin, Right AngleLED3 Typical BLUE SiC LEDMKF 麦克风Res 电阻Res2 Resistor
上传时间： 2021-11-17
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