Bearing estimation of a source with complicated spectrum using a moving sparse antenna array
| dc.contributor.author | Korotin, P. I. | |
| dc.contributor.author | Rodionov, A. A. | |
| dc.contributor.author | Turchin, V. I. | |
| dc.date.accessioned | 2010-06-15T14:19:49Z | |
| dc.date.available | 2010-06-15T14:19:49Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | Estimation of bearing of a narrowband source with the use of a sparse equidistant array usually turns out to be ambiguous. For a wideband source with smooth spectrum, this ambiguity can be overcome at the expense of decreasing the spatial resolution. At the same time, the ambiguity of bearing estimate of a narrowband source can be eliminated if the array is moving in respect to the source, and the well-known technique used in radars and sonars with synthetic aperture is used (in this case, a single receiver is enough). In the present paper, a scenario is analyzed when the source spectrum has a smooth wideband component and several narrowband components; such a spectrum is typical, for example, for underwater noise of ships. It is shown that a procedure of aperture synthesis applied to such a signal gives, under some conditions, the same result as conventional beamforming using a motionless array. This fact allows for effective separation of discrete components of the spectrum from its continuous part. Estimates of aperture synthesis duration allowing one to perform such a separation, as well as output signal-to-noise ratios, are presented. | uk_UA |
| dc.identifier.citation | Korotin P. I. Bearing estimation of a source with complicated spectrum using a moving sparse antenna array / P. I. Korotin, A. A. Rodionov, V. I. Turchin // Теорія та техніка антен : матеріали 7-ої Міжнародної конференції, 9–12 червня 2009 року, Львів, Україна. – Львів : Видавництво Національного університету "Львівська політехніка", 2009. – C. 151–153. – Bibliography: 3 titles. | uk_UA |
| dc.identifier.uri | https://ena.lpnu.ua/handle/ntb/5197 | |
| dc.language.iso | en | uk_UA |
| dc.publisher | Видавництво Національного університету "Львівська політехніка" | uk_UA |
| dc.subject | аcoustic array systems and processing | uk_UA |
| dc.subject | aperture synthesis and source localization | uk_UA |
| dc.subject | sparse antenna array | uk_UA |
| dc.title | Bearing estimation of a source with complicated spectrum using a moving sparse antenna array | uk_UA |
| dc.type | Article | uk_UA |