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Spatial-Modulation
spaital modulation是08年开始盛行的一种空间调制技术,他相比于v-blast,mrc等方式有了长足的进步。(Spatial modulation (SM) is a recently developedtransmission technique that uses multiple antennas.)
- 2012-04-26 12:09:32下载
- 积分:1
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ARQUITETURA
Documento de linguagem assembly utilizada em arquitetura de computadores. Em português
- 2009-06-22 21:01:53下载
- 积分:1
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Study-of-VSC-HVDC-Controller-
风电潮流的波动会引起并网系统公共连接点(PCC)电压的波动。在基于电压源换流
器的高压直流输电(VSC-HVDC)交直流混合风电场并网系统中,控制VSC-HVDC 送端站注入
到PCC 点的无功功率可以抑制电压波动。本文讨论了VSC-HVDC 的无功功率控制器和定电压控制
器抑制电压波动的原理。基于电磁暂态软件PSCAD/EMTDC 建立了并网风电场模型、VSC-HVDC
模型及控制系统模型。仿真结果表明VSC-HVDC 采用定电压控制器的并网系统能更好的抑制电
压波动,采用无功功率控制器的系统具有较好的风电场并网性能。(Reactive power variation of integration wind farm may cause point of common
coupling (PCC) voltage fluctuation. In hybrid wind farm integration system based on HVDC of
voltage source converter (VSC-HVDC), the voltage fluctuation can be alleviated by compensating
reactive power to PCC from VSC-HVDC sending end. Therefore, the reactive power controller and the
stable voltage controller to alleviate voltage fluctuation are studied in the paper. The integration wind
farm, VSC-HVDC and their controller models are set up by PSCAD/EMTDC. The simulation results
show that the integration system adopted stable voltage controller has a better performance to alleviate
voltage fluctuation. However the system adopted reactive controller has a good wind farm integration
capability.)
- 2012-03-01 16:09:37下载
- 积分:1
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ieee_posix_1003.1b
Information technology—Portable
Operating System Interface (POSIX),本文档为POSIX标准(Information technology-PortableOperating System Interface (POSIX), this document for the POSIX standard)
- 2008-06-14 10:34:32下载
- 积分:1
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kd
说明: Справка по дельфи
на русском языке
- 2009-10-12 17:55:59下载
- 积分:1
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7-2-1-16-25
documents to read on developement issues.
- 2011-08-26 13:31:50下载
- 积分:1
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m2m
m2m communication sysem
- 2017-12-20 22:19:56下载
- 积分:1
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Wireless-coverage-market-
无线覆盖市场月度监测报告、行业发展报告文件(monthly monitoring report)
- 2012-03-05 10:27:17下载
- 积分:1
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flying-control-law
概述了飞行控制律设计的几种主要方法。通过对比自适应飞行控制律和程序调参飞行控制律,总结
了处于飞行控制器设计领域主导地位的程序调参飞行控制律的主要优点和不足,并就程序调参技术在现代飞控领
域的研究现状及其在某先进飞机中的实际应用进行了介绍。最后,针对现代飞机的飞行特点,展望了程序调参飞
行控制律今后可能的发展方向。
(Summarizes the flight control law design of several major method. By comparing the adaptive flight control law and procedure parameters tuning flight control law is summarized The flight controller design field is in the leading position of the program and flight control law of the main advantages and disadvantages, and the process parameters tuning technology in the modern flight control broughtThe research status and domain in some advanced aircraft in the practical application are introduced in this paper. Finally, the modern aircraft s characteristics, and looks forward to the program and fly Line control law could in the future development direction.)
- 2012-02-24 13:24:30下载
- 积分:1
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User-Experience-Case-Study
互联网产品用户体验案例分析,帮助提高用户体验。(Internet product user experience case studies to help improve the user experience.)
- 2013-08-20 15:57:34下载
- 积分:1