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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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moxingising
对ising模型的模拟,这是二维的情况,对于学物理的人很重要的。(Ising model for the simulation, which is two-dimensional case, for physics, it is very important.)
- 2013-12-28 17:33:42下载
- 积分:1
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实验一 最大最小距离算法
MAX DISTANCE AND MIN DISTANCE OF CLUSTERING
- 2018-08-08 14:30:53下载
- 积分:1
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Pendulum_fourier
单摆振动运动规律的傅立叶分析MATLAB程序(Fourier law of motion of simple pendulum vibration analysis of MATLAB programs)
- 2009-11-14 12:13:40下载
- 积分:1
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amethodofpersondetect
说明: 基于视频序列的运动人体检测算法研究(a method of body move detect )
- 2010-04-13 16:20:33下载
- 积分:1
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UWB_BAN_channel_v2
这是一个uwb用于体域网的信道仿真程序,可以进行仿真,它符合IEEE.802.15.4a,非常好!(This is a body area network for the uwb channel simulation program allows for simulation, it is consistent with IEEE.802.15.4a, very good!)
- 2009-10-30 16:11:15下载
- 积分:1
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PSO
Program of Particle Swarm Optimization
- 2010-05-08 18:22:50下载
- 积分:1
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matlabxinhaochulixiangjie
MATLAB学习类书籍,使用MATLAB进行信号处理的教程,(MATLAB learning books, signal processing tutorial)
- 2010-09-06 16:07:23下载
- 积分:1
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choppercycloconverter
chopper cycloconverter with document
- 2010-01-23 03:03:59下载
- 积分:1
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4169505845699GAtools
说明: 自适应遗传算法matlab代码............对于系统辨识很好用的(Adaptive genetic algorithm matlab code ............ very good for the system identification used)
- 2008-11-19 21:27:09下载
- 积分:1