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getPDF2
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 18:46:04下载
- 积分：1
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unsupervised-learing
详细介绍了机器学习中非监督学习的内容、分类和方法(This document introduces the unsupervised learing of Machine learning with details.)
- 2013-11-03 23:15:33下载
- 积分：1
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ECPoint
A Point on an Elliptic Curve in barycentric (or affine) coordinates.
- 2013-12-06 12:21:05下载
- 积分：1
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yi
说明： 基于matlab 的叠加高斯白噪声的正弦信号频谱分析，给定正弦函数x=sin(2πf0n/N+π/3)+sin(2πf1n/N+π/4)，设定f0.f1的值，加了噪声之后做快速傅里叶变换，在matlab中分析其频谱，验证是否与f0,f1的值符合。再变换N值，看随着N值的变化对应点是否符合及有何变化。(Matlab based on the superposition of Gaussian white noise sinusoidal signal spectrum analysis, given the sine function x = sin (2蟺f0n/N+蟺/3)+sin (2蟺f1n/N+蟺/4) set value of f0.f1, do a quick noise Fourier transform to analyze the spectrum in matlab, verify that with f0, in line with the value of F1. Transform the value of N, see change as the value of N corresponding points of compliance and what changes.)
- 2013-05-01 13:44:49下载
- 积分：1
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RS_code_decode
RS纠错编码原理及其实现方法[第三版]
鉴于很多读者来信，特别是初学者对于如何求得RS生成多项式g[x]不是甚理解，特给出计算g[x]的MATLAB程序。(RS error-correcting coding theory and implementation methods [third edition] in view of a lot of letters from readers, especially for beginners on how to get RS to generate polynomial g [x] is not even understanding, give special calculation of g [x] in MATLAB procedures.)
- 2009-02-28 13:42:15下载
- 积分：1
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zltz
实现增量调制的简单的程序，十分简短。你应该可以作得更好(delta modulation to achieve the simple procedure is very short. You should be able to do better)
- 2006-06-02 18:14:35下载
- 积分：1
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Image-Fusion-using-UnDecimated-Wavelet-Transform
The most widely used transform for image fusion at
multi scale is Wavelet Transform since it minimizes structural
distortions. But, wavelet transform suffers lack of shift
invariance & poor directionality. These disadvantages are
overcome by using our proposed method that is Un-decimated
Discrete Wavelet Transform.
- 2014-12-12 13:33:09下载
- 积分：1
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SPWM_generator
spwm波形生成模块，载波可调，电机控制常用(spwm waveform generation module, the carrier is adjustable, motor control used)
- 2015-01-31 13:57:17下载
- 积分：1
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cahier-charge
document contenant un projet sur la compression audio par ondelettes et son code matlab
- 2010-11-20 07:24:40下载
- 积分：1
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face-tracking
可以直接运行的人脸定位跟踪程序，包含相应的视频文件(Can be run directly face positioning tracking program, including the corresponding video files)
- 2014-12-31 00:35:04下载
- 积分：1
