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Multiple-Input Multiple-Output (MIMO) systems have recently been the
subject of intensive consideration in modem wireless communications as they
offer the potential of providing high capacity, thus unleashing a wide range of
applications in the wireless domain. The main feature of MIMO systems is the
use of Space-time processing and Space-Time Codes (STCs). Among a variety
of STCs, orthogonal Space-Time Block Codes (STBCs) have a much simpler
decoding method, compared to other STCs
標簽：
Orthogonal
Space-Time
Processing
Complex
上傳時間：
2020-05-26
上傳用戶：shancjb
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Free Space Optical Communication (FSOC) is an effective alternative technology to
meet the Next Generation Network (NGN) demands as well as highly secured (mili-
tary) communications. FSOC includes various advantages like last mile access, easy
installation, free of Electro Magnetic Interference (EMI)/Electro Magnetic Compatibil-
ity (EMC) and license free access etc. In FSOC, the optical beam propagation in the
turbulentatmosphereisseverelyaffectedbyvariousfactorssuspendedinthechannel,
geographicallocationoftheinstallationsite,terraintypeandmeteorologicalchanges.
Therefore a rigorous experimental study over a longer period becomes significant to
analyze the quality and reliability of the FSOC channel and the maximum data rate
that the system can operate since data transmission is completely season dependent.
標簽：
Communication
Optical
System
Space
Free
上傳時間：
2020-05-27
上傳用戶：shancjb
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Driven by the desire to boost the quality of service of wireless systems closer to that afforded
by wireline systems, Space-time processing for multiple-input multiple-output (MIMO)
wireless communications research has drawn remarkable interest in recent years. Excit-
ing theoretical advances, complemented by rapid transition of research results to industry
products and services, have created a vibrant and growing area that is already established
by all counts. This offers a good opportunity to reflect on key developments in the area
during the past decade and also outline emerging trends.
標簽：
Space-Time
Processing
上傳時間：
2020-06-01
上傳用戶：shancjb
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In this thesis several asp ects of Space-time pro cessing and equalization for wire-
less communications are treated. We discuss several di?erent metho ds of improv-
ing estimates of Space-time channels, such as temp oral parametrization, spatial
parametrization, reduced rank channel estimation, b o otstrap channel estimation,
and joint estimation of an FIR channel and an AR noise mo del. In wireless commu-
nication the signal is often sub ject to intersymb ol interference as well as interfer-
ence from other users.
標簽：
Communications
Space-Time
Processing
Wireless
for
上傳時間：
2020-06-01
上傳用戶：shancjb
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Star Trek_ Deep Space Nine - A Stitch in Time - Andrew J. Robinson 英文版 格式 epub
標簽：
Stitch
Space
Star
Deep
Nine
Trek
Time
in
上傳時間：
2021-06-17
上傳用戶：potato
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This paper presents a Space vector modulation(SVM)-based switching strategy for a three-level neutral point clamped (NPC) converter that is adapted as a STATCOM.
標簽：
STATCOM
三電平
變換器
空間矢量
上傳時間：
2013-10-20
上傳用戶：zyt
-
Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for battery operation. In some circumstances,due to Space, power or reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation must function at end-of-life batteryvoltage, typically 1.3V. (See Box Section, “Componentsfor 1.5V Operation.”)
標簽：
Circuitry
Operation
Single
1017
上傳時間：
2013-12-20
上傳用戶：Wwill
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TCS ECN Background & Key TermsTrust Issues with PCIe PlatformsTCS ECN DetailsTrusted Config Space and TCS TransactionsTrusted Config Access Mech (TCAM)Standard vs Trusted Config AccessNew Capability StructuresTCS Support in Root Ports, Switches, & BridgesTCS “Does not…” ListExample Trusted Computing PlatformRevisiting the Trust IssuesKey Takeaways/Call to ActionQuestions
標簽：
Configuration
Trusted
PCIe
Spa
上傳時間：
2013-11-21
上傳用戶：hsfei8
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Radio Frequency Integrated Circuit Design
I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in Space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.
標簽：
Rogers
Radio
John
Freq
上傳時間：
2014-12-23
上傳用戶：han_zh
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enter——選取或啟動
esc——放棄或取消
f1——啟動在線幫助窗口
tab——啟動浮動圖件的屬性窗口
pgup——放大窗口顯示比例
pgdn——縮小窗口顯示比例
end——刷新屏幕
del——刪除點取的元件（1個）
ctrl+del——刪除選取的元件（2個或2個以上）
x+a——取消所有被選取圖件的選取狀態
x——將浮動圖件左右翻轉
y——將浮動圖件上下翻轉
Space——將浮動圖件旋轉90度
crtl+ins——將選取圖件復制到編輯區里
shift+ins——將剪貼板里的圖件貼到編輯區里
shift+del——將選取圖件剪切放入剪貼板里
alt+backSpace——恢復前一次的操作
ctrl+backSpace——取消前一次的恢復
crtl+g——跳轉到指定的位置
crtl+f——尋找指定的文字
標簽：
Protel
DXP
快捷鍵
上傳時間：
2013-12-29
上傳用戶：13033095779
