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https://olympias.lib.uoi.gr/jspui/handle/123456789/15982Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Christofilakis, V. N. | en |
| dc.contributor.author | Kostarakis, P. | en |
| dc.contributor.author | Alexandridis, A. A. | en |
| dc.contributor.author | Lazarakis, F. | en |
| dc.contributor.author | Dangakis, K. | en |
| dc.date.accessioned | 2015-11-24T18:27:00Z | - |
| dc.date.available | 2015-11-24T18:27:00Z | - |
| dc.identifier.issn | 1434-8411 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/15982 | - |
| dc.rights | Default Licence | - |
| dc.subject | beamformer | en |
| dc.subject | accuracy | en |
| dc.subject | resolution | en |
| dc.subject | dsp | en |
| dc.subject | pdl | en |
| dc.title | Increasing direction-of-transmission resolution in digital time-delay beamformers | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.primary | DOI 10.1016/j.aeue.2007.10.006 | - |
| heal.identifier.secondary | <Go to ISI>://000252707600006 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S1434841107001823/1-s2.0-S1434841107001823-main.pdf?_tid=d4bc9e0b0fcb9d16720449c6ca71393a&acdnat=1334229516_9b5dfa8fbb3baa383f9065eda4a90454 | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.publicationDate | 2008 | - |
| heal.abstract | The direction-of-transmission (DOT) resolution of a digital time-delay beamformer (DTDBF) is directly related to sampling intervals. In fact, the smaller the sampling intervals the better the DOT resolution and the larger the number of natural beams. In a DTDBF based on digital signal processor (DSP) the sampling intervals are primarily restricted by the I/O bandwidth of the DSP. In this paper a new and simple digital time-delay beamformer configuration for transmission is proposed, incorporating a programmable delay line (PDL) between DSP and digital-to-analog converter (DAC). The behavior of the resultant system is first analyzed and then compared to the traditional one through simulations. It is proven that the proposed system significantly increases the DOT resolution and overcomes DOT accuracy errors opposed to that of the conventional one. Furthermore, the influences of the additional time jitter effects due to PDL and DAC objects on the performance of the proposed system are investigated. (C) 2007 Elsevier GmbH. All rights reserved. | en |
| heal.journalName | Aeu-International Journal of Electronics and Communications | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Christofilakis-2008-Increasing direction.pdf | 338.83 kB | Adobe PDF | View/Open Request a copy |
This item is licensed under a Creative Commons License
