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PLC-BIAN-CHENG
S7-200 PLC 的初步设计及编程技巧,适合初学者使用。(S7-200 PLC preliminary design and programming skills, suitable for beginners to use.)
- 2013-07-07 17:47:31下载
- 积分:1
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Smart-Antennas-For-Wireless-
描述了智能天线在无线通信环境下的各种应用。(Describes a smart antenna in a wireless communication environment, a variety of applications.)
- 2013-09-09 20:30:32下载
- 积分:1
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Enb_Select
LTE系统中小区的选择,根据物理位置或是最大发射功率(enb in LTE system)
- 2015-04-08 10:50:19下载
- 积分:1
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AbstractPTOC
this is simply a report on the fading channel on different modulation scheme
- 2013-08-21 23:25:29下载
- 积分:1
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gun_na37
pwm整流器的建模仿真,感应双馈发电机系统的仿真,复化三点Gauss-lengend公式求pi。( Modeling and simulation pwm rectifier Simulation of doubly fed induction generator system, Complex of three-point Gauss-lengend the Formula pi.)
- 2017-05-10 10:04:05下载
- 积分:1
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ZTEWinCE_V1_2
说明: ZTEWelink Wireless Module Driver User Guide for WinCE-V1.2
- 2019-01-15 09:29:45下载
- 积分:1
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HCF-Spec183-(Common-Tables-Specification)
HART Communication Foundation - Common Tables Specification
- 2020-11-20 14:49:36下载
- 积分:1
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05441004
Multiple input multiple output techniques combined
with orthogonal frequency division multiplexing (MIMO-OFDM)
provide a promising approach for wireless systems. However, a
serious drawback of the OFDM system is the high peak-toaverage
power ratio (PAPR), which may severely affect the
power efficiency of RF power amplifiers. In this paper, we
propose a simple method to reduce the PAPR of MIMO-OFDM
signals based on the use of unused subcarriers. Instead of
processing the signals at each transmitter separately, a peak
cancelling signal is generated at one antenna and is then applied
to all the others with only simple modifications. Simulation has
shown that a minimum 2 dB reduction in PAPR can be achieved
for all transmit signals using this approach. As the signal
processing is nearly all done at a single transmitter, repetition of
the operations at each transmitter is avoided, and therefore the
overall cost of the system can be significantly reduced.
- 2011-11-05 01:46:42下载
- 积分:1
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HART
HART协议解析,非常完整,定能加快研发进度。(HART agreements, some of the information, in the hope that everyone has to help)
- 2020-12-15 17:49:13下载
- 积分:1
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CMU200
CUM200的中文使用说明书,包含CMU200的大部分实用功能(The Chinese CUM200 instructions)
- 2012-06-27 17:07:46下载
- 积分:1