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papr_windowing
reduction to papr in ofdm with Peak Windowing:
The basic idea of peak windowing is to multiply the envelope of OFDM
signal with a weighting function . Therefore,
~xE (t)= xE (t) f (t)
where
XE(t) =[x(t)]
The weighting function given by:
f (t)= 1-Σ α .w(t- t )
t-t
w(t) : is the window function.
t : denotes the position of a local maximum of the envelop xE(t) .
α : attenuation constant .
When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal.
Hanning window function will be used for w(t)
As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.
- 2013-05-02 01:07:53下载
- 积分:1
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immue-algotithm-(1)
matlab免疫克隆算法目标优化,取得极值,标准型,可修改(Matlab genetic algorithm objective optimization to obtain the extreme value, the standard can be modified)
- 2012-03-30 14:52:38下载
- 积分:1
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RATE_DataAcquisition
ALLAN方差拟合曲线 用于数据的采集和提取,提高提取速度(ALLAN analysis of variance for data gathering and extraction to improve extraction speed)
- 2011-06-19 17:58:18下载
- 积分:1
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802.11-OFDM-simulink-code
基于802.11完整OFDM仿真程序,包括发送端和接收端,调制及解调(OFDM simulink code)
- 2012-05-28 15:08:14下载
- 积分:1
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Distribution-power-flow-calculatio
配电潮流计算,并包括IEEE的数据,配电潮流计算,并包括IEEE的数据,(Distribution power flow calculation, and includes data of the IEEE)
- 2013-04-30 17:12:26下载
- 积分:1
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simulink
实现了曲线拟合,关于客车燃油经济性的曲线(vc++ achieve numerical simulation with the approximation method of calculating least-squares curve fitting )
- 2010-09-09 22:14:44下载
- 积分:1
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Image_cropping
批量地对图像进行自由剪裁 以达到想要的大小 并能批量输出( batch crop the image freely and batch output)
- 2010-09-21 17:17:30下载
- 积分:1
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pmsm
描述永磁同步电机矢量控制系统控制模型包含clark 变换,park 变换等(PMSM FOC model)
- 2013-10-20 20:43:48下载
- 积分:1
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use
元胞自动机 nasch 模型!单条道路上模拟 的(a cellular automaton,nasch model on one lane)
- 2014-02-11 02:52:04下载
- 积分:1
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LMS
抑制干扰噪声的自适应的LMS算法,效果很好,(supress noise LMS algorithm)
- 2012-06-06 11:12:51下载
- 积分:1