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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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Labview
虚拟仪器Labview：FFT、采样、加窗、互相关分析仪、滤波器、谱分析、随机信号分析仪、信号发生器.exe自谱与自相关分析.exe的可执行程序(FFT, sampling, windowing, cross-correlation analysis instrument, filter, spectrum analysis, the random signal analyzer, signal generator exe autospectrum autocorrelation analysis exe executable program)
- 2021-02-24 12:29:40下载
- 积分：1
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LabviewUSB
说明： 可以通过labview进行USB通讯，凄凄切切群群群群群群群群群(USB communication through LabVIEW)
- 2019-04-14 15:59:16下载
- 积分：1
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ConvertTDMS
使用matlab直接读取tdms数据，不需要转换，没有错误。(TDMS reads matlab program)
- 2021-03-18 09:29:20下载
- 积分：1
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直流电机转速控制.tar
说明： 基于转速环-电流环双闭环控制的直流电机调速系统的labview上位机程序。(The LabVIEW upper computer program of DC motor speed control system based on double closed-loop control of speed-loop and current-loop.)
- 2019-06-17 16:55:09下载
- 积分：1
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labview
本文关于labview中模拟输入、模拟输出、数字I/O功能，希望能够对大家有所帮助。(This article about labview analog input, analog output, digital I/O functions, hoping to be helpful to everyone.)
- 2021-05-13 17:30:02下载
- 积分：1
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CAR
模拟的智能小车控制系统,含有账户管理，密码修改(Simulation of smart car control system simulation of smart car control system)
- 2021-04-21 22:08:49下载
- 积分：1
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shockresponse
读取txt的文本的二列数据，实现冲击响应谱分析和功率谱分析(Read txt text two data to achieve shock response spectrum analysis and power spectral analysis)
- 2013-07-30 16:25:47下载
- 积分：1
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UTAS-Harvard-Referencing-Guide
It is about how to write references in limited styles which help students have a good command of essay skills.
- 2015-05-31 12:13:57下载
- 积分：1
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calculator
基于labview的简易计算器，能够实现加减乘除，开方求导等基本运算(Based on LabVIEW simple calculator, addition, subtraction, multiplication and division, square root derivation and other basic operations)
- 2013-04-25 19:17:18下载
- 积分：1
