-
In this book we focus on the basic signal processing that underlies current and
future ultra wideband systems. By looking at signal processing in this way we
hope this text will be useful even as UWB applications mature and change or
regulations regarding ultra wideband systems are modified. The current UWB
field is extremely dynamic, with new techniques and ideas being presented at every
communications and signal-processing conference. The basic signal-processing
techniques presented in this text though will not change for some time to come.
Thus, we have taken a somewhat theoretical approach, which we believe is longer
lasting and more useful to the Reader in the long term than an up-to-the-minute
summary that is out of date as soon as it is published.
標簽：
Wideband
Signals
Systems
Ultra
1st
上傳時間：
2020-06-01
上傳用戶：shancjb
-
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.
標簽：
Communications
Wireless
Edition
2nd
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Welcome to the third volume of the book entitled Technologies for the Wireless Future, which
is produced by WWRF. The idea is to take the most important outputs from the working
groups and special-interest groups that compose the Forum and bring them together in a series
of one-volume surveys. The latest of these will give the Reader a good overview of the WWRF
approach to analyzing the future of wireless and mobile communications, as well as an insight
into the trends themselves and the key technologies that will be deployed.
標簽：
Wireless
Research
Forum
World
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Dear Reader, this book project brings to you a unique study tool for ESD
protection solutions used in analog-integrated circuit (IC) design. Quick-start
learning is combined with in-depth understanding for the whole spectrum of cross-
disciplinary knowledge required to excel in the ESD field. The chapters cover
technical material from elementary semiconductor structure and device levels up
to complex analog circuit design examples and case studies.
標簽：
Circuits
Design
Analog
ESD
for
上傳時間：
2020-06-05
上傳用戶：shancjb
-
The author’s group has developed various chipless RFID tags and Reader architectures
at 2.45, 4–8, 24, and 60 GHz. These results were published extensively in the form of
books, book chapters, refereed conference and journal articles, and finally, as patent
applications. However, there is still room for improvement of chipless RFID sys-
tems. In this book, we proposed advanced techniques of chipless RFID systems that
supersede their predecessors in signal processing, tag design, and Reader architecture.
標簽：
Advanced
Chipless
RFID
上傳時間：
2020-06-08
上傳用戶：shancjb
-
Introduction to Radio Frequency Identification (RFID): RFID is a
wireless modulation and demodulation technique for automatic
identification of objects, tracking goods, smart logistics, and access con-
trol. RFID is a contactless, usually short‐distance transmission and
reception technique for unique ID data transfer from a tagged object to
an interrogator (Reader). The generic configuration of an RFID system
comprises (i) an ID data‐carrying tag, (ii) a Reader, (iii) a middleware,
and (iv) an enterprise application.
標簽：
Chipless_Radio_Frequency_Identifi
cation
上傳時間：
2020-06-08
上傳用戶：shancjb
-
Identification is pervasive nowadays in daily life due to many complicated activities such as
bank and library card reading, asset tracking, toll collecting, restricted access to sensitive data
and procedures and target identification. This kind of task can be realized by passwords, bio-
metric data such as fingerprints, barcode, optical character recognition, smart cards and radar.
Radiofrequencyidentification(RFID)isatechniquetoidentifyobjectsbyusingradiosystems.
It is a contactless, usually short distance, wireless data transmission and reception technique
for identification of objects. An RFID system consists of two components: the tag (also called
transponder) and the Reader (also called interrogator).
標簽：
Processing
Digital
Signal
RFID
for
上傳時間：
2020-06-08
上傳用戶：shancjb
-
There is an unprecedented enthusiasm for radio frequency
identification (RFID) technologies today. RFID is based on the
exchange of information carried by electromagnetic waves between a
label, or tag, and a Reader. This technology is currently in full
economic expansion, which has manifested itself in widely backed
research activities, some of which will be examined in this book.
標簽：
Identification
Frequency
Sensors
Radio
and
上傳時間：
2020-06-08
上傳用戶：shancjb
-
We are in the era of ubiquitous computing in which the use and development of Radio Frequency Iden-
tification (RFID) is becoming more widespread. RFID systems have three main components: Readers,
tags, and database. An RFID tag is composed of a small microchip, limited logical functionality, and an
antenna. Most common tags are passive and harvest energy from a nearby RFID Reader. This energy is
used both to energize the chip and send the answer back to the Reader request. The tag provides a unique
identifier (or an anonymized version of that), which allows the unequivocal identification of the tag
holder (i.e. person, animal, or items).
標簽：
Identification
Wireless
上傳時間：
2020-06-08
上傳用戶：shancjb
-
If one examines the current literature on GPS receiver design, most of it is quite a
bit above the level of the novice. It is taken for granted that the Reader is already at a
fairly high level of understanding and proceeds from there. This text will be an
attempt to take the Reader through the concepts and circuits needed to be able to
understand how a GPS receiver works from the antenna to the solution of user
position.
標簽：
Fundamentals_of_Global_Positionin
g_System
上傳時間：
2020-06-09
上傳用戶：shancjb
