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During the past two decades there has been a substantial growth in research in
wireless communications. The number of journals published from various parts of
the world catering to the research Community has grown exponentially. Despite
such a growth, the engineering Community still needs more information so as to
thoroughly comprehend wireless channel characteristics. What specifically must be
understood are the effects of channel degradation brought on by statistical fluctua-
tions in the channel.
標(biāo)簽：
Shadowing
Wireless
Systems
Fading
and
in
上傳時(shí)間：
2020-05-27
上傳用戶：shancjb
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This book was conceived in such a special way. From our experience, and despite the
increasing interest that we perceived amongst the research Community in HAPS,
there was not any book in the market entirely devoted to HAPS. We could only find
some satellite communications books including only fragments related to HAPS,
covering the ‘generalities’. A need for a reference book which could highlight state-
of-the-art HAPS-related topics was therefore envisaged. Moreover, most of the
information related to HAPS could only be found in technical reports, official
recommendations, conference proceedings and journal papers.
標(biāo)簽：
High-Altitude
Platforms
上傳時(shí)間：
2020-05-27
上傳用戶：shancjb
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Our original effort in writing this book was to create a starting point for those in
the business Community who did not have a high level of technical expertise but
needed to have some understanding of the technical functions of their information
and communication technologies (ICT) in a corporate environment. As was true
with the first edition of this book, if you are already an engineer, find some other
form of pleasure reading—this text is not designed for you!
標(biāo)簽：
Communications
Introduction
Technologies
to
上傳時(shí)間：
2020-05-27
上傳用戶：shancjb
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Theartofcomputationofelectromagnetic(EM)problemshasgrownexponentially
for three decades due to the availability of powerful computer resources. In spite of
this, the EM Community has suffered without a suitable text on the computational
techniques commonly used in solving EM-related problems. Although there have
been monographs on one particular technique or another, the monographs are written
for the experts rather than students. Only a few texts cover the major techniques and
dothatinamannersuitableforclassroomuse.Itseemsexpertsinthisareaarefamiliar
with one or a few techniques but not many seem to be familiar with all the common
techniques. This text attempts to fill that gap.
標(biāo)簽：
Electromagnetics
Techniques
Numerical
in
上傳時(shí)間：
2020-05-31
上傳用戶：shancjb
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Wireless communications, together with its applications and underlying technologies, is
among today’s most active areas of technology development. The very rapid pace of im-
provements in both custom and programmable integrated circuits for signal processing ap-
plications has led to the justfiable view of advanced signal processing as a key enabler of the
aggressively escalating capacity demands of emerging wireless systems. Consequently, there
has been a tremendous and very widespread effort on the part of the research Community
to develop novel signal processing techniques that can fulfill this promise.
標(biāo)簽：
Communication
Wireless
Systems
上傳時(shí)間：
2020-06-01
上傳用戶：shancjb
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Nowadays sensors are part of everyday life in a wide variety of fields: scientific
applications, medical instrumentation, industrial field, ...and, last but not least,
popular mass production and low-cost goods, like smartphones and other mobile
devices. Markets and business behind the field of sensors are quite impressive.
A common trend for consumer applications is miniaturization which requires, on
one side, a lot of research, development efforts, and resources but, on the other
hand, allows costs and final application size reduction. In this scenario scientific
Community and industries are very active to drive innovation.
標(biāo)簽：
Magnetometers
Lorentz
Force
MEMS
上傳時(shí)間：
2020-06-06
上傳用戶：shancjb
-
RFID (radio-frequency identification) is the use of a wireless non-contact system
that uses radio-frequencyelectromagnetic fields to transfer datafrom a tag attached
to an object, for the purposes of automatic identification and tracking [38]. The
basic technologies for RFID have been around for a long time. Its root can be traced
back to an espionage device designed in 1945 by Leon Theremin of the Soviet
Union,whichretransmittedincidentradiowaves modulatedwith audioinformation.
After decades of development, RFID systems have gain more and more attention
from both the research Community and the industry.
標(biāo)簽：
Infrastructure
RFID
as
an
上傳時(shí)間：
2020-06-08
上傳用戶：shancjb
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Although doing science is at the heart of discovery, the effort would have
very limited consequence in the long term without writingscience. As a social
enterprise that depends on collaboration, scientific inquiry requires its practi-
tioners to write on a regular basis. From time to time, some members of the
scientific Community have been critical of the overall quality of writing by re-
searchers.
標(biāo)簽：
Goldbort_Writing
Science
for
上傳時(shí)間：
2020-06-09
上傳用戶：shancjb
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Phenomenon is an overused and overloaded term, but somehow it seems appropriate for Arduino—an
endeavor that has caught the attention of an astonishingly wide range of people and provided
opportunities for those who might otherwise have never picked up a soldering iron or written a single
line of code. From dyed-in-the-wool hardware hackers to web page developers, robotics enthusiasts to
installation artists, textile students to musicians: all can be found in the Arduino Community. The
versatility of the platform encompassing both hardware and software, combined with its inherent
openness, has captured the imagination of tens of thousands of developers.
標(biāo)簽：
Practical
Projects
Arduino
Cool
上傳時(shí)間：
2020-06-09
上傳用戶：shancjb
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I am presenting this novel book on advances and trends in power electronics and motor
drives to the professional Community with the expectation that it will be given the same
wide and enthusiastic acceptance by practicing engineers, R&D professionals, univer-
sity professors, and even graduate students that my other books in this area have. Unlike
the traditional books available in the area of power electronics, this book has a unique
presentation format that makes it convenient for group presentations that use Microsoft’s
PowerPoint software. In fact, a disk is included that has a PowerPoint file on it that is
ready for presentation with the core figures. Presentations can also be organized using
just selected portions of the book
標(biāo)簽：
Electronics
Advances
Drives
Power
Motor
And
上傳時(shí)間：
2020-06-10
上傳用戶：shancjb
