High resolution beamforming applied to a DIFAR sonobuoy
AbstractHigh-resolution beamforming techniques have been successfully applied to DIFAR data to provided accurate directional information. Although the current processing techniques are adequate for most situations, the presence of multiple contacts, or strong directional noise, may hinder target detection, and localization. Simulations and experimental results from field data showed that EML provided the best overall results in terms of accuracy, peak-to-trough visibility and processing time, for a range of parameters. EIML improved the peak-to-trough difference at the expense of processing time, but in most cases, the weaker contact was already visible with EML, making the gain minimal. It was also found that EEV may produce spurious peaks, or create double peaks, in isolated cases. EEV is otherwise accurate, with EIEV providing marginal improvement.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.