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Statistical inferen...
Statistical inference for block sparsity of complex-valued signals
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- Wang, Jianfeng, 1984- (författare)
- Umeå universitet,Institutionen för matematik och matematisk statistik
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- Zhou, Zhiyong (författare)
- Umeå universitet,Institutionen för matematik och matematisk statistik,Department of Statistics, Zhejiang University City College, China
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- Yu, Jun, 1962- (författare)
- Umeå universitet,Institutionen för matematik och matematisk statistik,Mathematical Statistics
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(creator_code:org_t)
- 2020-05
- 2020
- Engelska.
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Ingår i: IET Signal Processing. - : Institution of Engineering and Technology. - 1751-9675 .- 1751-9683. ; 14:3, s. 154-161
- Relaterad länk:
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https://ietresearch....
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Block sparsity is an important parameter in many algorithms to successfully recover block-sparse signals under the framework of compressive sensing. However, it is often unknown and needs to be estimated. Recently there emerges a few research work about how to estimate block sparsity of real-valued signals, while there is, to the best of our knowledge, no research that has been done for complex-valued signals. In this study, we propose a method to estimate the block sparsity of complex-valued signal. Its statistical properties are obtained and verified by simulations. In addition, we demonstrate the importance of accurately estimating the block sparsity through a sensitivity analysis.
Ämnesord
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Block sparsity
- Complex-valued signals
- Multivariate isotropic symmetric alpha-stable distributions
- matematisk statistik
- Mathematical Statistics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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