spectrum
共 152 篇文章
spectrum 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 152 篇文章，持续更新中。
4G移动通信技术权威指南：LTE与LTE-Advanced.4G LTE.LTE
<p>Preface</p><p>During the past years, there has been a quickly rising interest in radio access technologies for providing</p><p>mobile as well as nomadic and fixed services for voice, video, and dat
基于MSP430单片机及FPGA的简易数字示波器
<p>数字示波器功能强大,使用方便,但是价格相对昂贵。本文以Ti的MSP430F5529为主控器,以Altera公司的EP2C5T144C8 FPGA器件为逻辑控制部件设计数字示波器。模拟信号经程控放大、整形电路后形成方波信号送至FPGA测频,根据频率值选择采用片上及片外高速AD分段采样。FPGA控制片外AD采样并将数据输入到FIFO模块中缓存,由单片机进行频谱分析。测试表明:简易示波器可以实现自
5G通信技术白皮书技术资料合集
<p>5G通信技术白皮书技术资料合集</p><p><br/></p><p>摘 要 5G 致力于应对 2020 后多样化差异化业务的巨大挑战，满足超高速率、超低时延、高速移动、高能效 和超高流量与连接数密度等多维能力指标。FuTURE 论坛 5G 特别兴趣组（SIG）围绕着“柔性、绿色、极 速”的 5G 愿景，以“5+2”技术理念，重新思考 5G 网络的设计原则： 1) 香农理论再思考（Rethin
EN 300220-1V2.4.1
EN 300220-1V2.4.1 Electromagnetic compatibility and Radio spectrum Matters (ERM);Short Range Devices (SRD);Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with po
Cognitive+Radio+Networks
Resource allocation is an important issue in wireless communication networks. In<br />
recent decades, cognitive radio technology and cognitive radio-based networks have<br />
obtained more and more a
ESD Design for Analog Circuits
Dear Reader, this book project brings to you a unique study tool for ESD<br />
protection solutions used in analog-integrated circuit (IC) design. Quick-start<br />
learning is combined with in-depth
Visible Light Communication
Visible light communications (VLC) is the name given to an optical wireless<br />
communication system that carries information by modulating light in the visible spectrum<br />
(400–700 nm) that is p
Utility Maximization in Nonconvex Wireless Systems
Once upon a time, cellular wireless networks provided two basic services: voice<br />
telephony and low-rate text messaging. Users in the network were separated<br />
by orthogonal multiple access sch
Transceiver and System Design
T<br />
his book covers basic communications theory and practical imple-<br />
mentation of transmitters and receivers. In so doing, I focus on dig-<br />
ital modulation, demodulation methods, probab
Spread-Spectrum Communication Systems 3rd
The continuing vitality of spread-spectrum communication systems and the devel-<br />
opment of new mathematical methods for their analysis provided the motivation to<br />
undertake this new edition
Spread-Spectrum+Communication+Systems+2nd
Spread-spectrum communication is a core area within the field of digital<br />
communication. Originally used in military networks as countermeasures against<br />
the threats of jamming and intercept
Spread-Spectrum Communication Systems 1st
The goal of this book is to provide a concise but lucid explanation and deriva-<br />
tion of the fundamentals of spread-spectrum communication systems. Although<br />
spread-spectrum communication is
Spectrum+Sharing+Between+Radars
Radio frequency spectrum is a scarce and critical natural resource that is utilized for<br />
many services including surveillance, navigation, communication, and broadcast-<br />
ing. Recent years ha
Spectrum+and+Energy+Efficient
Heterogeneous Network (HetNet): A network that consists of a mix of macro cells and low-power<br />
nodes, e.g. Pico, Femto, Relay Node (RN) and Remote Radio Head (RRH)<br />
Spectrum+Access+and+Management
The radio spectrum is one of the most precious resources which must be managed<br />
to ensure efficient access for the wireless communication services which use it. The<br />
allocation and managemen
Silicon-Based+RF+Front-Ends
Ultra-wideband (UWB) technology enables high data-rate short-range communica-<br />
tion, in excess of hundredmegabit-per-secondsand up to multi-gigabit-per-seconds,<br />
over a wide spectrum of freq
Sharing+RF+Spectrum
This book was born from the perception that there is much more to spectrum use<br />
and sharing than one sees reflected in publications, whether academic, commercial<br />
or political. the former –
Scrambling Techniques for CDMA Communications
With the advent of IMT-2000, CDMA has emerged at the focal point of<br />
interest in wireless communications. Now it has become impossible to discuss<br />
wireless communications without knowing the
RFIC+Design+for+Cognitive+Radio+Systems
Cognitive radios have become a vital solution that allows sharing of the scarce<br />
frequency spectrum available for wireless systems. It has been demonstrated<br />
that it can be used for future w
Radio+Spectrum+Management
An understanding of the policies, regulations, standards and techniques of radio spectrum<br />
management is useful to those who manage and administrate it, to operators, to equipment<br />
providers