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部分支集已知的信号恢复 被引量:1

Signal recovery with partially known signal support
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摘要 稀疏信号恢复是压缩感知的主要研究问题,目前已经取得了非常丰富的成果.而在实际应用中,往往有一些先验信息可以利用,以提高恢复的效率,减少测量次数.本文主要讨论部分支集已知的稀疏或可压缩信号恢复问题,提出了一个松弛零空间条件并且改进了保证信号稳定恢复的限制等距常数界. This paper studies the recovery of sparse or compressible signals from a certain number of linear measurements when the signal support is partially known.The reconstruction method is based on a convex minimization which minimize the l 1 norm of the signal over the complement of the known part.We propose a relaxed null space condition and give a new bound via restricted isometry constant to guarantee the signal to be recovered stably.
作者 李松 王会敏
出处 《中国科学:数学》 CSCD 北大核心 2012年第4期313-319,共7页 Scientia Sinica:Mathematica
基金 国家自然科学基金(批准号:11171299 10771190 10971189) 浙江省自然科学基金(批准号:Y6090091 Y6090641)资助项目
关键词 压缩感知 限制等距常数 先验信息 compressive sensing restricted isometry constants prior information
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参考文献11

  • 1Richard Baraniuk,Mark Davenport,Ronald DeVore,Michael Wakin.A Simple Proof of the Restricted Isometry Property for Random Matrices[J].Constructive Approximation.2008(3) 被引量:1
  • 2Cohen A,Devore R,Dahmen W.Compressed sensing:An best k-term approximation[].Journal of the American Mathematical Society.2009 被引量:1
  • 3Candes E J.The restricted isometry property and its implications for compressed sensing[].C R Math Acad Sci Paris Ser I.2008 被引量:1
  • 4Mo Q,Li S.New bounds on the restricted isometry constantδ2k[].Appl Harm Comp Anal.2011 被引量:1
  • 5Garcia-Frias J,Esnaola I.Exploiting prior knowledge in the recovery of signals from noisy random projections[].Proceedings of theData Compression Conference.2007 被引量:1
  • 6Duarte M F,Wakin M B,Baraniuk R G.Fast reconstruction of piecewise smooth signals from incoherent projections[].Workshop on Signal Processing with Adaptative Sparse Structured Representations (SPARS).2005 被引量:1
  • 7Elad M,Aharon M.Image denoising via sparse and redundant representations over learned dictionaries[].IEEE Transactions on Image Processing.2006 被引量:1
  • 8Miosso C J,Barries R,Argaez M,et al.Compressive sensing reconstruction with prior information by iteratively reweighted least squares[].IEEE Transactions on Signal Processing.2009 被引量:1
  • 9Vaswani N.Least squares CS-residual (LS-CS):Compressive sensing on least squares residual[].IEEE Transactions on Signal Processing.2010 被引量:1
  • 10Vaswani N,Lu W.Modified-CS:Modifying compressive sensing for problems with partially known support[].IEEE Transactions on Signal Processing.2010 被引量:1

同被引文献8

  • 1Lin J H, Li S. Nonuniform support recovery from noisy random measurements by orthogonal matching pursuit. J Approx Theory, in press. 被引量:1
  • 2Lin J H, Li S. Block sparse recovery via mixed 12/ll minimization. Acta Math Sin Engl Ser, in press. 被引量:1
  • 3Lin J H, Li S, Shen Y. New bounds for restricted isometry constants with coherent tight frames. IEEE Trans Signal Process, in press. 被引量:1
  • 4Mo Q, Li S. New bounds on the restricted isometry constant d2k- Appl Computational Harmon Anal, 2011, 31: 460 468. 被引量:1
  • 5Qun M, Shen Y. A remark oll tile restricted isometry property in orthogonal matching pursuit. IEEE Trans Inform Theory, 2012, 58:3654 3656. 被引量:1
  • 6Shen Y, Li S. Restricted p-isometry property and its application for nonconvex compressive sensing. Adv Comput Math, doi: 10A007/s10444-011-9219-y. 被引量:1
  • 7Wang H M, Li S. Stable recovery of low rank matrices from nuclear norm minimization. Acta Math Appl Sinica Engl Ser, in press. 被引量:1
  • 8Wang H M, Li S. The bounds of restricted isometry constants for low rank matrices recovery. Sci China Math, in press. 被引量:1

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