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[Beamforming is a signal processing technique that is used in conjunction with an array of sensors to provide useful spatial filtering. Beamforming requires processing the data collected over a spatial aperture in order to achieve spatial discrimination of received signals. This spatial...
[In the simplest form, a signal propagating from one point to another undergoes signal filtering from the propagation medium. Beamforming is a signal processing method to undo this filtering, such that the desired signal is retained at the receiver end, in addition to possibly suppression of...
[A beamformer is a spatial filter used to achieve spatial selectivity. However, it can be combined with a temporal filter to achieve both spatial and temporal selectivity. Such combined filter is essentially a multidimensional filter which is normally known as broadband beamformer. Broadband...
[The design formulation for fixed broadband beamformers can be extended to steerable broadband beamformers using a polynomial filter structure to achieve beam steering. The main advantage of a steerable broadband beamformer is that once its coefficients are designed, its main beam can still be...
[It is important to incorporate robustness into broadband beamformer designs for them to work in the practical environment. This is because errors and mismatches between the practical environment and theoretical model can be detrimental to the operation of beamformers. This chapter discusses a...
[Beamforming is a signal processing technique which allows signals originating from non-overlapping spatial location to be selectively processed to achieve desired signal enhancements. Beamformers’ design process is a two-step process, i.e. (1) modelling of the underlying signal source, acoustic...
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