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getPDF1
In this paper, we investigate the timing and carrier
frequency offset (CFO) synchronization problem in decode and
forward cooperative systems operating over frequency selective
channels. A training sequence which consists of one orthogonal
frequency-division multiplexing (OFDM) block having a tile
structure in the frequency domain is proposed to perform synchronization.
Timing offsets are estimated using correlation-type
algorithms. By inserting some null subcarriers in the proposed tile
structure, we propose a computationally efficient subspace decomposition-
based algorithm for CFO estimation. The issue of optimal
tile length is studied both theoretically and through simulations.
By judiciously designing the tile size of the pilot, the proposed
algorithms are shown to have better performance, in terms of
synchronization errors and bit error rate, than the time-division
multiplexing-based training method and the computationally demanding
space-alternating generalized expectation-maximization
- 2010-08-11 18:19:11下载
- 积分:1
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sdarticle
ICM神经网络
ICM is short for intersecting cortical mode
which is very useful to image processing
- 2009-05-28 19:51:13下载
- 积分:1
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一种快速图象中值滤波算法
一种快速图象中值滤波算法 北京理工大学学报转载(A fast image median filtering algorithm Beijing Polytechnic University Journal reprinted)
- 2005-05-29 22:04:21下载
- 积分:1
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GP_matlab_toolbox
说明: 遗传规划的matlab工具箱,易上手,功能强大,且有详细的说明文档(genetic programming of Matlab Toolbox, hidden, powerful, which is described in detail in documents)
- 2021-04-09 09:58:59下载
- 积分:1
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ManchesterCode
改程序将实现对两个信号的曼切斯特编码,以用仿真软件验证过了(Reform program will achieve two Manchester encoded signal to a validated using simulation software)
- 2014-12-14 15:44:57下载
- 积分:1
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Krom
kromososm in genetik algoritm
- 2012-10-25 15:25:06下载
- 积分:1
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DistProbCoefsDesc
This is a simple matlab routine that calculates a simulated multiplicative cascade process for a time series, then compares it with a real time series you want to analyze, and plots them both in log-log coordinates to compare them. You should have your time series in a format of double column listing: the ordinal member in the first column, the corresponding data in the second one. Then you change the file name that appears in the program for the name of your own file, and proceed.
- 2009-10-17 03:59:02下载
- 积分:1
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f22d5fb7aca2
pca code for face reconition
- 2012-04-02 14:15:35下载
- 积分:1
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mat-code
matlab codes given for various applications.
- 2012-06-15 17:14:47下载
- 积分:1
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windowed_Fourier_transform
加窗傅立叶变换及其逆变换的重构,并有详细的注释和例子(Windowed Fourier transform and its inverse transform of the reconstruction, and detailed notes and examples)
- 2011-09-06 22:57:53下载
- 积分:1