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The idea for this book was born during one of my project-related trips to the beautiful city
of Hangzhou in China, where in the role of Chief Architect I had to guide a team of very
young, very smart and extremely dedicated software developers and verification engineers.
Soon it became clear that as eager as the team was to jump into the coding, it did not have
any experience in system architecture and design and if I did not want to spend all my time in
constant travel between San Francisco and Hangzhou, the only option was to groom a number
of local junior architects. Logically, one of the first questions being asked by these carefully
selected future architects was whether I could recommend a book or other learning material
that could speed up the learning cycle. I could not. Of course, there were many books on
various related topics, but many of them were too old and most of the updated information
was either somewhere on the Internet dispersed between many sites and online magazines, or
buried in my brain along with many years of experience of system architecture.
標(biāo)簽：
Telecommunication
Gateways
System
Design
for
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
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n the first part of this book, we give an introduction to the basic applications of wireless com-
munications, as well as the technical problems inherent in this communication paradigm. After a
brief history of wireless, Chapter 1 describes the different types of wireless services, and works
out their fundamental differences. The subsequent Section 1.3 looks at the same problem from
a different angle: what data rates, ranges, etc., occur in practical systems, and especially, what
combination of performance measures are demanded (e.g., what data rates need to be transmitted
over short distances; what data rates are required over long distances?) Chapter 2 then describes
the technical challenges of communicating without wires, putting special emphasis on fading and
co-channel interference. Chapter 3 describes the most elementary problem of designing a wireless
system, namely to set up a link budget in either a noise-limited or an interference-limited system.
After studying this part of the book, the reader should have an overview of different types of
wireless services, and understand the technical challenges involved in each of them. The solutions
to those challenges are described in the later parts of this book.
標(biāo)簽：
Communications
Wireless
Edition
2nd
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
-
Digital radios have undergone an astonishing evolution in the last century. Born as a set of simple and
power-hungry electrical and electromechanical devices for low data rate transmission of telegraph data
in the Marconi age, they have transformed, thanks to substantial advances in electronic technology,
into a set of small, reliable and sophisticated integrated devices supporting broadband multimedia
communications. This, however, would not have been possible unless significant progress had been
made in recent decades in the field of signal processing algorithms for baseband and passband signals.
In fact, the core of any modern digital radio consists of a set of algorithms running over programmable
electronic hardware. This book stems from the research and teaching activities of its co-authors in
the field of algorithmic techniques for wireless communications. A huge body of technical literature
has accumulated in the last four decades in this area, and an extensive coverage of all its important
aspects in a single textbook is impossible. For this reason, we have selected a few important topics
and, for ease of reading, organized them into two parts.
標(biāo)簽：
Communications
Algorithmic
Techniques
Wireless
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
-
This paper reviews key factors to practical ESD
protection design for RF and analog/mixed-signal (AMS) ICs,
including general challenges emerging, ESD-RFIC interactions,
RF ESD design optimization and prediction, RF ESD design
characterization, ESD-RFIC co-design technique, etc. Practical
design examples are discussed. It means to provide a systematic
and practical design flow for whole-chip ESD protection design
optimization and prediction for RF/AMS ICs to ensure 1 st Si
design success.
標(biāo)簽：
ESD_protection_for_RF_and_AMS_ICs
上傳時(shí)間：
2020-06-05
上傳用戶：shancjb
-
stract
With global drivers such as better energy
consumption, energy efficiency and reduction of
greenhouse gases, CO 2 emission reduction has become
key in every layer of the value chain. Power Electronics
has definitely a role to play in these thrilling challenges.
From converters down to compound semiconductors,
innovation is leading to breakthrough technologies. Wide
BandGap, Power Module Packaging, growth of Electric
Vehicle market will game change the overall power
electronic industry and supply chain. In this presentation
we will review power electronics trends, from
technologies to markets.
標(biāo)簽：
Electronics
Materials
Power
WBG
for
上傳時(shí)間：
2020-06-07
上傳用戶：shancjb
-
Instrukcja programowania trójosiowego sterownika ruchu ?przemys?owego wy?wietlania ekranugo” V2.0
Model kontrolera : HYCNC-WPRS232-P3 , Wersja oprogramowania : V2.0 , Data : 2020-7-12
Autor : Guilin Hengyuan Technology Co., Ltd. ( Pan Lee )
標(biāo)簽：
programowania
Instrukcja
HYCNC-WPRS
sterownika
232
PLC
ver
P3
PL
上傳時(shí)間：
2021-06-23
上傳用戶：DawidoCezaro
-
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.
標(biāo)簽：
ieee
verilog
上傳時(shí)間：
2021-11-09
上傳用戶：
-
摘# 要：設(shè)計(jì)和制作了一款&& ?G（!& )*）液晶電視用4F9 背光源。模擬出4F9 的光學(xué)分布，以此為基礎(chǔ)模擬出4F9 陣列的光強(qiáng)和顏色分布，得到適合的背光源厚度尺寸。在實(shí)際制作中，采用高效的驅(qū)動電路對4F9 陣列進(jìn)行驅(qū)動，利用鋁制散熱片為背光源提供必須的散熱。測試的結(jié)果，在整體背光源功耗為"$% M 時(shí)，中心亮度達(dá)到"D DE% ?6 N G!，均勻度為CO@ " P，色彩還原性達(dá)到=QR’ 標(biāo)準(zhǔn)"%! P，遠(yuǎn)遠(yuǎn)超過’’S4 背光源的A% P。
標(biāo)簽：
led
光源
上傳時(shí)間：
2021-12-09
上傳用戶：
-
介紹一種萬能模擬信號輸入采集電路,可以同時(shí)支持電壓、電流、熱電偶、熱電阻等常見的工業(yè)類型信號,方便后級電路的測量。該研究成果通過不斷優(yōu)化和完善,已成功應(yīng)用到了中控儀表的新產(chǎn)品中。The paper introduces a collection circuit of universal signal input. The circuit support voltage, current, thermocouple, thermal resistance and other common industrial type signal. The research results, which has been continuous optimized and improved, has been successfully applied to the new production of Zhejiang Supcon Instrument Co., Ltd.
標(biāo)簽：
采集電路
上傳時(shí)間：
2022-04-21
上傳用戶：slq1234567890
-
ISO 26262《道路車輛功能安全》國際標(biāo)準(zhǔn)是針對總重不超過3.5噸八座乘用車，以安全相關(guān)電子電氣系統(tǒng)的特點(diǎn)所制定的功能安全標(biāo)準(zhǔn)，基于IEC 61508《安全相關(guān)電氣/電子/可編程電子系統(tǒng)功能安全》制定，在2011年11月15日正式發(fā)布。ISO 26262是史上第一個適用于大批量量產(chǎn)產(chǎn)品的功能安全（Functional Safety）標(biāo)準(zhǔn)。特別需要注意的是，ISO 26262僅針對安全相關(guān)電子電氣系統(tǒng)，包含電機(jī)、電子與軟件零件，不應(yīng)用于非電子電氣系統(tǒng)（如機(jī)械、液壓等）。功能安全之設(shè)計(jì)議題在汽車領(lǐng)域已被重視，因其關(guān)系人員安全與公司商譽(yù)等問題，透過危害分析與風(fēng)險(xiǎn)評估（Hazard Analysis & Risk Assessment，HARA）及V模型設(shè)計(jì)架構(gòu)，使功能安全需求等級得到一致性的分析結(jié)果，以利汽車電子系統(tǒng)之生命周期考慮到所需失效防止技術(shù)與管理要求，并借由設(shè)計(jì)開發(fā)、查證（Verification）及確認(rèn)（Validation）等能力成熟度模型集成（CMMI-DEV）流程加以實(shí)現(xiàn)，使得產(chǎn)品之功能安全符合所需汽車安全完整性等級（ASIL）。
標(biāo)簽：
道路車輛功能安全
iso26262
國際標(biāo)準(zhǔn)
上傳時(shí)間：
2022-05-30
上傳用戶：
