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Description: 探讨时域加窗后对LFM信号匹配滤波后峰值旁瓣比和隔离度的影响-Time domain windowing of LFM signal after matched filtering the peak sidelobe ratio and the impact of isolation
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Author: pangbo |
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Description: 峰值抵消算法的基本思想是：在OFDM信号上叠加一个由一系列加权参考函数组成的峰值抵消信号，通过抵消函数的选取以及权值计算，使得抵消信号尽可能消除超过门限的信号幅值。常见的参考函数分为脉冲函数和其他窗函数两类。- T. May, H. Rohling. Reducing the peak-to-average power ratio in OFDM radio transmission systems. IEEE Vehicular Technology Conference (VTC), May 1998, Ottawa Canada, 3: 2474-2478
A. Geert Arnout, van N. Richard D., de W. Arnout Hendrik. Transmission system and method employing peak cancellation to reduce the peak-to-avrage power ratio. US Patent 6175551, Issued on January 16, 2001
S. K. Cha, M. H. Park, S. G. LEE, et al. A new PAPR reduction technique for OFDM systems using advanced peak windowing method. IEEE Trans. Consum. Electron., 2008, 54(2): 405-410
G. G. Chen, R. Ansari, Y. W. Yao. Improved peak windowing for PAPR reduction in OFDM. IEEE Vehicular Technology Conference, Apr. 2009, Barcelona, Spain
H. Kuo, S.W. Cheung. Optimization of windowing and peak-windowing techniques for WCDMA systems. IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse France, 4: IV313-IV316
O. Vä ä nä nen, J. Vankka, K. Halonen. Simpl
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Author: daidaohan |
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Description: A new PAPR reduction technique for OFDM systems using advanced peak windowing method.PDF
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Size: 1181696 |
Author: mary |
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Description:
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.
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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.
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Size: 2048 |
Author: asmaa |
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Description: peak windowing crest factor reduction
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Size: 1024 |
Author: chenqinsong |
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Description: ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，一个很有用的程序，包括最后计算压缩图像的峰值信噪比和压缩效果的源码。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, A very useful program, Including the final calculation of the compressed image peak signal to noise ratio and compression of the source.
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Size: 4096 |
Author: jungousun |
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Description: Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, It describes the application of load forecasting, ofdm system simulation including 16qam modulation fft windowing modules plus cp.
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Size: 4096 |
Author: hgwshp
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Description: In this paper, proposed
scheme will be introduced that combines interleaving
method with peak windowing method.
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Size: 134144 |
Author: sakran
|
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Description: 实现共振峰检测的MATLAb程序：分帧加窗；|FFT|；log；IFFT；log；平滑处理(MATLAb program for realization of resonance peak detection Frame windowing; |FFT|; log; IFFT; log; smoothing processing)
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Size: 21504 |
Author: 梅小笔 |
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