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EnglishSystems based on secondary surveillance radar (SSR) downlink signals, both with directional and with omni-directional antennae (such as in multilateration), are operational today and more and more installations are being planned. In this frame, high-density traffic leads to the reception of a mixture of several overlapping SSR replies. By nature, SSR sources are sparse, i.e. with amplitude equal to zero with significantly high probability. While in the literature several algorithms performing sources separation with an m-element antenna have been proposed, none has satisfactorily employed the full potential of sparsity for SSR signals. Most sparsity algorithms can separate only real-valued sources, although we present in this study two algorithms to separate the complex-valued SSR sources. Recorded signals in a live environment are used to demonstrate the effectiveness of the proposed techniques. Copyright © Cambridge University Press and the European Microwave Association 2009.
| Tipologia: | Articolo su rivista |
| Citazione: | Galati, G., Priacci, E.G., & Petrochilos, N. (2009). Coherent source separation based on sparsity: an application to SSR signals. INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES, 1(Special Issue 3), 185-191. |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore ING-INF/03 - Telecomunicazioni |
| Revisione (peer review): | Sì, ma tipo non specificato |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1017/S175907870900018X |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 3-giu-2009 |
| Titolo: | Coherent source separation based on sparsity: an application to SSR signals |
| Autori: | |
| Autori: | Galati, G; Piracci, EG; Petrochilos, N |
| Appare nelle tipologie: | 01 - Articolo su rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| ProcEuMA_PGP_sparse.pdf | Articolo principale | N/A | Open Access Visualizza/Apri |
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