Kootsookos, Peter; Ward, Darren B; Williamson, Robert
This paper considers the problem of altering a quiescent design for an array of omni-directional sensors so that the altered design rejects a far- field broadband signal from a given direction. This problem occurs where microphone arrays are to be used to acquire speech signals for telecommunication and interferring signals must be rejected. Three main results are presented in this paper. First, conditions for imposing an exact broadband null upon any given quiescent array response are derived....[Show more]
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