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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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rrhhj
LabVIEW和MATLAB在水声信号处理中的应用
(LabVIEW and MATLAB in underwater acoustic signal processing applications)
- 2011-10-28 08:43:21下载
- 积分：1
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STFT
MATLAB实现短时傅里叶变换，短时傅里叶逆变换。直接配置好参数就可以用，实用性强。(MATLAB implementation of short time Fourier transform, short time Fourier inverse transform. Direct configuration of parameters can be used, practically.)
- 2017-10-24 16:18:50下载
- 积分：1
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关于信噪比的求法
说明： 关于高斯白噪声的信噪比的精确计算。。。。。。。。。。。。(Accurate Calculation of Signal-to-Noise Ratio of Gauss White Noise)
- 2019-02-22 13:10:42下载
- 积分：1
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EX
说明： 这是用matlab实现的边缘检测图像技术，您可以看看，对新学者有帮助。。。(This is achieved by edge detection matlab imaging technology, you can look at to help the new scholars. . .)
- 2009-04-22 10:51:02下载
- 积分：1
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Fingerprint_recongnition
一个指纹识别系统，用于提取指纹的特征。采用Matlab编译。包括若干测试图片。(A fingerprint identification system used to extract the fingerprint features. Compiled using Matlab. Including a number of test images.)
- 2010-02-12 15:34:39下载
- 积分：1
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4MATLAB
第4章 MATLAB绘图 matlab 教程ppt
(the ppt about matlab)
- 2010-03-07 09:26:56下载
- 积分：1
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handwritten-digits_recognition-
一个基于神经网络的手写体数字识别的matlab程序，可以自行进行神经网络训练并识别给出相应的结果(A neural network-based handwritten numeral recognition matlab program, the neural network can be trained to identify themselves and give the corresponding results)
- 2013-12-02 07:06:43下载
- 积分：1
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PQ
说明： 本程序为PQ解耦法计算电力系统的常规潮流。该程序简单，易懂，注释详细。(This procedure PQ decoupled method for power system of conventional trend. The procedure is simple, easy-to-understand, detailed notes.)
- 2009-03-29 13:13:49下载
- 积分：1
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ofdm_channel_estimation
基于块状导频的信道估计仿真，有LS,LMMSE信道估计算法(Based on the pilot block channel estimation simulation, has LS, LMMSE channel estimation algorithm)
- 2021-04-07 10:09:01下载
- 积分：1
