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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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IEC-61850标准[中文.完整版]
说明： IEC-61850标准分析完整中文版（自用）(IEC-61850 standard analysis)
- 2020-08-18 16:08:21下载
- 积分：1
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Carrier_Delay_Syn
说明： 给程序给出了功率放大器预失真过程中的时延同步问题。(This codes provides the time delay synchronization in the process of power amplifier predistortion.)
- 2009-07-23 08:11:09下载
- 积分：1
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n428
GSM reading book in the would
- 2018-01-11 20:53:23下载
- 积分：1
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Principles-Of-Communication
通信系统仿真原理与无线应用 《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。(Simulation principles of communication systems and wireless applications. "A systematic introduction to the design, analysis and simulation of communication systems, it also provides a large number of simulation examples of great reference value.)
- 2012-04-16 09:58:48下载
- 积分：1
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17869356wendu
有关CC2430的文档，里面的东西很实用，希望对你有帮助(The CC2430 document, which is very useful stuff, want to help you)
- 2010-03-10 12:43:37下载
- 积分：1
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TJA1050_cn
TJA1050中文说明！！！！！！！！！(TJA1050 CHINESE！)
- 2011-01-10 20:42:49下载
- 积分：1
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kpsgv
本程序的性能已经达到较高水平，用于特征降维，特征融合，相关分析等,对于初学者具有参考意义。( The performance of the program has reached a high level, For feature reduction, feature fusion, correlation analysis, For beginners with a reference value.)
- 2017-04-25 11:28:18下载
- 积分：1
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adaptive-signal-process
自适应信号处理（何振亚）（科学出版社出版）（有关自适应信号处理的书籍）(Adaptive signal processing (Zhenya) (Science Press) (for adaptive signal processing books))
- 2011-08-17 15:01:09下载
- 积分：1
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if538
BP神经网络用于函数拟合与模式识别，基于SVPWM的三电平逆变的matlab仿真，包括压缩比、运行时间和计算复原图像的峰值信噪比。( BP neural network function fitting and pattern recognition, Based on SVPWM three-level inverter matlab simulation, Including compression ratio, image restoration computing uptime and peak signal to noise ratio.)
- 2017-05-03 15:35:27下载
- 积分：1
