An updated approach to reference frame analysis of electric machines and drive systems Since the first edition of Analysis of Electric Machinery was published, the reference frame theory that was detailed in the book has become the universally accepted approach for the analysis of both electric machines and electric drive systems. Now in its second edition, Analysis of Electric Machinery and Drive Systems presents, in one resource, the application of this theory to the analysis, simulation, and design of the complete drive system including the machine, converter, and control. Supplemented with more than 325 figures, this book also covers: Analysis of converters used in electric drive systems, as well as DC, induction, and brushless DC motor drives Detailed treatment of supervisory down to switch level converter controls Nonlinear average value modeling of converters and drive systems Operational impedances and reduced-order modeling Guidelines for computer simulation of machines and drive systems Complete with condensed, quick-reference treatments of necessary theoretical material, Analysis of Electric Machinery and Drive Systems, Second Edition is appropriate as a senior- and graduate-level text as well as an invaluable resource for electrical, mechanical, and systems engineers in the electric machinery and drives areas.
2021-11-24 18:07:59 66.05MB Analysis Electric Machinery Drive
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Zachman关于企业架构的论文《A framework for information systems architecture》
2021-11-24 16:50:33 1.78MB enterprise architecture
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保证完整,目前网上找个完整的不容易(2019-06-13); Stream Processing with Apache Flink(Flink布道者)完整书签高清pdf以及epub; 以及评价超高的Streaming Systems(谷歌大脑Tyler Akidau) ; 以及18年10月Flink技术沙
2021-11-24 12:16:53 151.51MB flink pdf epub
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Ultra-Wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols 剑桥大学出版的关于UWB定位方法,原理的书籍,265页完全版......适合研究人、博士生等专业人士研读......
2021-11-24 09:12:07 5.47MB UWB Positioning
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4.3多基线测向算法 利用多条基线可以消除模糊性,包括消除镜像模糊性和由相位测量引起的模 糊性。下面给出的算法不区分测向模糊性是哪一种,同时进行去模糊处理。 考虑两条不平行的基线,假定他们的长度分别为DJ和Dj,并设这两条基线 法线与十x轴的夹角分布为rp,和竹。当来波方位角为rPo时,利用两条基线分别测 出了相位差"。和y扣,反演出两基线测到的入射角主值∥。和卢,0表示为: fl,o=sin-l盟2xD,(4-12a、 tim=sin-1荔,’.万I//j.o r4-12b) 根据相位差,由(4—8)式可确定一组方位角值识,和纪。,而实际的方位角‰一 定包含在其中,有 万 . 纪m 2能+-ff—Sill (sinfl,舯,争 (4—13a) %2砟+争sin弋sin办棚告) ⋯3b) 方程(4-13)给出的仅仅是基线一侧的模糊角,在基线的另一侧还有沿着该条 基线对称分布的镜像模糊角。根据(4—9)式,基线单侧模糊角数分别为m,和m,,
2021-11-23 19:36:31 1.55MB 测向
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5.1.2长短基线联合测向 五元阵中相邻天线两两也可组成5条基线,并用天线编号表示为1—2,2—3, 3.4,4.5,5.1。这5条基线比间隔天线组成的基线要短一些,称为较短基线。下 面给出同时使用5条较长基线和5条较短基线测向的计算方法,此时拥有10项 相位信息而不是5项相位信息。 首先求出较短基线的相关公式。较短基线对应的理想相差为 y品=一2kRsin36·sin(Ijo一36) l;c,墨=2kRsin36。-sin(q'+72‘) y品=一2ksin36·sin々o (5-12) 坨=2k sin36·sin(o-72) 蛇=一2kR sin36·sin(q,+36 1 对(5-12)进行归一处理,两边同时除以系数2kReos36。,可得 蛇⋯sin(rp 36。) 驴墨=sin(tp+72。) 驴三=一simp。 (5—13) 矿品=sin(q,一72。) 或=一sin(q,+36。) 设5条较短基线实测相位差分别为矿。y:,,】;c,。妒。,,y"除以系数 2kRcos36。归一化后为蛾2,妒Ⅲ驴3d,矿45,矿5l。
2021-11-23 19:07:44 1.55MB 测向
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Advanced Multicore Systems-On-Chip: Architecture, On-Chip Network, Design By 作者: Abderazek Ben Abdallah ISBN-10 书号: 9811060916 ISBN-13 书号: 9789811060915 Edition 版本: 1st ed. 2017 出版日期: 2017-09-12 pages 页数: (273 ) Springer 出版超清 From basic architecture, interconnection, and parallelization to power optimization, this book provides a comprehensive description of emerging multicore systems-on-chip (MCSoCs) hardware and software design. Highlighting both fundamentals and advanced software and hardware design, it can serve as a primary textbook for advanced courses in MCSoCs design and embedded systems. The first three chapters introduce MCSoCs architectures, present design challenges and conventional design methods, and describe in detail the main building blocks of MCSoCs. Chapters 4, 5, and 6 discuss fundamental and advanced on-chip interconnection network technologies for multi and many core SoCs, enabling readers to understand the microarchitectures for on-chip routers and network interfaces that are essential in the context of latency, area, and power constraints. With the rise of multicore and many-core systems, concurrency is becoming a major issue in the daily life of a programmer. Thus, compiler and software development tools are critical in helping programmers create high-performance software. Programmers should make sure that their parallelized program codes will not cause race condition, memory-access deadlocks, or other faults that may crash their entire systems. As such, Chapter 7 describes a novel parallelizing compiler design for high-performance computing. Chapter 8 provides a detailed investigation of power reduction techniques for MCSoCs at component and network levels. It discusses energy conservation in general hardware design, and also in embedded multicore system components, such as CPUs, disks, displays and memories. Lastly, Chapter 9 presents a real embedded MCSoCs system design targeted for health monitoring in the elderly.
2021-11-23 14:00:52 14.66MB Network
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基于推测度传播的同步CDMA多用户检测器,程宏,谢俗子,本文提出了基于可信度传播算法应用于同步CDMA系统的检测器以抑制不同用户之间的多址干扰(MAI)。仿真分析表明基于该算法的差错概��
2021-11-23 11:23:16 143KB Belief propagation
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Created by Yuntao Qiang, for OS Class. Pls feel free to use this resource
2021-11-22 19:00:48 497KB os
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非线性回归方法的锂离子卫星动力系统的RUL和SOH估计 链接到数据集可以在找到
2021-11-22 15:28:14 2.4MB 系统开源
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