Extension of the aggregate beamformer to filter-and-sum beamforming
Keywords:Acoustic noise, Computational methods, Data reduction, FIR filters, Linearization, Optimization, Signal to noise ratio, Wave propagation, Beamformers, Delay and sum (D&S) beamforming, Filter-and sum (F&S) beamforming, Stochastic filters
AbstractThe extension of delay and sum aggregate beamformer to filter and sum beamforming is discussed. It is observed that the aggregate beamformer differs from conventional beamforming in which it converts off-beam signals to noise that can be filtered. It is also observed that the conventional and the aggregate F&S beamformers are equivalent in the mean. The results shows that extending the D&S aggregate beamforming to F&S does not incur additional computation and the residual noise is increased.
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.