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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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perfect-OFDM-program-MATLAB
完美的OFDM信道估计仿真程序，可以传输音频。希望对您的研究有帮助(Perfect OFDM channel estimation simulation program can transmit audio. I hope to help your research)
- 2013-09-22 20:34:08下载
- 积分：1
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5_3小波分解与重构
图像图形小波分解与重构算法
MATLAB 语言源程序(Wavelet decomposition)
- 2020-10-18 21:07:27下载
- 积分：1
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wave
说明： 利用小波变换做图像压缩，大家相互探讨~相互学习(Do image compression using wavelet transform)
- 2010-04-15 21:15:36下载
- 积分：1
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matlab-for-programming
主要对matlab在编程方面的应用作一个较详细的介绍，其中涉及了编程必然须注意的变量类型、数据类型、程序控制语句及matlab函数等相关内容(matlab for programming)
- 2013-09-24 11:12:18下载
- 积分：1
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11
由通用桥式电路模块组成的单相晶闸管组成的单相晶闸管整流电路(By the universal bridge circuit single phase thyristor modules consisting of single-phase thyristor rectifier circuit)
- 2013-10-03 00:23:37下载
- 积分：1
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coeff1
fir filter response
- 2009-10-17 14:29:45下载
- 积分：1
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SF
说明： Image encryption code
- 2015-04-01 07:51:38下载
- 积分：1
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matlab
A matlab book which writing in Chinese.
- 2011-06-17 15:51:40下载
- 积分：1
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shan
应用熵检测法实现CW脉冲信号的检测，并画出ROC曲线，判断接收机性能。(Applying entropy detection method to realize CW pulse signal detection, and draw ROC curve to judge the receiver performance.)
- 2016-12-14 10:45:50下载
- 积分：1
