<delect id="ouxer"></delect> Wireless communications has become a field of enormous scientific and economic interest. Recent success stories include 2G and 3G cellular voice and data services (e.g., GSM and UMTS), wireless local area networks (WiFi/IEEE 802.11x), wireless broadband access (WiMAX/IEEE 802.16x), and digital broadcast systems (DVB, DAB, DRM). On the physical layer side, traditional designs typically assume that the radio channel remains constant for the duration of a data block. However, researchers and system designers are increasingly shifting their attention to channels that may vary within a block. In addition to time dispersion caused by multipath propagation, these rapidly time-varying channels feature frequency dispersion resulting from the Doppler effect. They are, thus, often referred to as being “doubly dispersive.”
標(biāo)簽： Time-Varying Channels
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
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we believe is longer lasting and more useful to the reader in the long term than an up-to-the-minute summary that is out of date as soon as it is published.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(biāo)簽： Wideband Signals Systems Ultra 1st
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
Switched systems are embedded devices widespread in industrial applications such as power electronics and automotive control. They consist of continuous-time dynamical subsystems and a rule that controls the switching between them. Under a suitable control rule, the system can improve its steady-state performance and meet essential properties, such as safety and stability, in desirable operating zones.
標(biāo)簽： Invariance Switching Analysis1 Systems by
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
Control Systems Engineering is an exciting and challenging field and is a multidisciplinary subject. This book is designed and organized around the concepts of control systems engineering using MATLAB, as they have been developed in the frequency and time domain for an introductory undergraduate or graduate course in control systems for engineer- ing students of all disciplines.
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
從時(shí)域分析比較了ofdm和stbc與ofdm結(jié)合的性能差別-from time-domain analysis and comparison of OFDM stbc OFDM combined wi
上傳時(shí)間： 2013-06-05
上傳用戶：caozhizhi
蛇行線(delay tune)1. 前言蛇行線可在Allegro 中藉由elong_by_pick 自動完成.若想以半自動方式則可用
標(biāo)簽： allegro 64008 delay tune
上傳時(shí)間： 2013-06-25
上傳用戶：allen-zhao123
·Applied Mathematics in Integrated Navigation Systems
標(biāo)簽： nbsp Mathematics Integrated Navigation
上傳時(shí)間： 2013-07-17
上傳用戶：liu_yuankang
·Stanford&IBM牛人經(jīng)典之作 - Digital Control of Dynamic SystemsEditorial ReviewsProduct DescriptionThis well-respected, market-leading text discusses the use of digital computers in the real-time co
標(biāo)簽： nbsp Hardcover Digital Control
上傳時(shí)間： 2013-07-31
上傳用戶：cuiyashuo
資料->【E】光盤論文->【E1】斯坦福博士論文->Global Positioning Systems-Inertial Navigation and Integration.pdf
標(biāo)簽： Systems-Inertial Positioning Integration Navigation
上傳時(shí)間： 2013-06-24
上傳用戶：04121298
·通信仿真的世界級寶典：Simulation of Communication Systems, 2002,kluwer本書已經(jīng)有中譯本，由國防工業(yè)出版社出版，定價(jià)218元。雖如此，還是讀原文比較可靠！！！
標(biāo)簽： nbsp Communication Simulation Systems
上傳時(shí)間： 2013-07-10
上傳用戶：hbsunhui
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