Abstract
A bound for sparse reconstruction involving both the signal-to-noise ratio (SNR) and the estimation grid size is presented. The bound is illustrated for the case of a uniform linear array (ULA). By reducing the number of possible sparse vectors present in the feasible set of a constrained ℓ1-norm minimization problem, ambiguities in the reconstruction of a single source under noise can be reduced. This reduction is achieved by means of a proper selection of the estimation grid, which is naturally linked with the mutual coherence of the sensing matrix. Numerical simulations show the performance of sparse reconstruction with an estimation grid meeting the provided bound demonstrating the effectiveness of the proposed bound.
Original language | English |
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Title of host publication | 2016 IEEE Statistical Signal Processing Workshop (SSP) |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Print) | 978-1-4673-7802-4 |
DOIs | |
Publication status | Published - 25 Aug 2016 |
Event | 2016 IEEE Statistical Signal Processing Workshop (SSP) - Palma de Mallorca, Spain Duration: 26 Jun 2016 → 29 Jun 2017 http://ssp2016.tsc.uc3m.es/ |
Workshop
Workshop | 2016 IEEE Statistical Signal Processing Workshop (SSP) |
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Abbreviated title | SSP 2016 |
Country/Territory | Spain |
City | Palma de Mallorca |
Period | 26/06/16 → 29/06/17 |
Internet address |
Keywords
- sparse reconstruction
- direction of arrival (DOA) estimation
- sensing matrix
- uniform linear array
- compressed sensing