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Research-on-Compressed-Sensing
经典的香农采样定理认为,为了不失真地恢复模拟信号,采样频率应该不小于奈奎斯特频率(即模拟信号
频谱中的最高频率)的两倍.但是其中除了利用到信号是有限带宽的假设外,没利用任何的其它先验信息.采集到
的数据存在很大程度的冗余.Donoho等人提出的压缩感知方法(Compressed Sensing或Compressive Sampling,
CS)充分运用了大部分信号在预知的一组基上可以稀疏表示这一先验信息,利用随机投影实现了在远低于奈奎斯
特频率的采样频率下对压缩数据的直接采集.该方法不仅为降低采样频率提供了一种新思路,也为其它科学领域
的研究提供了新的契机.该文综述性地阐述了压缩感知方法的基本原理,给出了其中的一些约束问题和估计方法,
并介绍压缩感知理论的相关问题———矩阵填充,最后讨论了其未来可能的应用前景.
(According to the conventional Shannon s sampling theorem,in order to represent the
analog signal,the sampling rate should not be less than twice the Nyquist sampling rate.Howev-
er,this theorem only makes use of the bandwidth information.As a result,the collected data
contain many redundant information.The recently proposed sampling method,compressed sens-
ing or compressive sampling(CS),can collect compressed data at the sampling rate much lower
than that needed in Shannon s sampling theorem by exploring the compressibility of the signal.
This paper presents a review on the basic theory of CS.Some of the restrictions and recovery
methods in CS are also discussed.Finally,some potential applications based on CS are presented.
)
- 2014-09-04 15:25:07下载
- 积分:1
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gps-signal-autocorrelation
gps信号的自相关,以及boc信号的自相关(gps signal autocorrelation, and boc autocorrelation)
- 2020-07-01 10:40:02下载
- 积分:1
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WELL
它试图解决的问题,薄弱的标签是一个多学习一种新标签的问题,其中只有部分标签集与每个提供相关培训的例子(This package includes the MATLAB code of the multi-label learning algorithm WELL. It tries to deal with weak label problem which is a new kind of multi-label learning problem, where only a partial label set associated with each training example is provided. A Readme file and an example file are included in the package)
- 2010-12-18 20:47:29下载
- 积分:1
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CurveLab
curvelet变换的经典快速工具箱,不够20个字(curvelet transform classic fast Toolbox)
- 2010-12-26 08:41:38下载
- 积分:1
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ofdm2
实现了 正交频分复用OFDM的仿真,包括循环前缀的添加 和傅里叶变换 其中调制解调用了QPSK(Realize the orthogonal frequency division multiplexing (OFDM simulation, including the circulation of the prefix add and Fourier transform one demodulation used QPSK
)
- 2012-04-23 16:40:15下载
- 积分:1
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FISTA_Radon
一个用于压缩感知理论的快速随机变换的代码(A fast random code conversion for compressing perceived)
- 2014-04-23 14:41:56下载
- 积分:1
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Mackey-Glass-Time-Series-Forecasting-using-Method
this is matlab code of time series prediction .
Mackey-Glass Time Series Forecasting using Method 1 Single Stage Fuzzy Forecaster.
- 2014-11-24 05:50:38下载
- 积分:1
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3232A2
Model 3232a2 - accelemeter sensor
- 2010-12-16 00:33:33下载
- 积分:1
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matlab-and-vc
说明: MATLAB和VC混合编程的论文资料近50篇,均为图书馆下载,很详细(Hybrid Programming MATLAB and VC data nearly 50 papers, all libraries to download, very detailed)
- 2011-04-11 10:55:16下载
- 积分:1
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Combining_Cooperative_Relaying_with_Spectrum_Sensi
认知无线电的相关英文资料,经典,值得收藏!(English information related to cognitive radio, you can see!)
- 2010-05-12 14:18:44下载
- 积分:1