Title :
Beamforming for a source located in the interior of a sensor array
Author :
Ward, Darren B. ; Williamson, Robert C.
Author_Institution :
Univ. Coll., New South Wales Univ., Canberra ACT, Australia
Abstract :
We introduce a framework for acquiring a signal from a source that is located within the midst of a randomly distributed sensor array. This problem arises in speech acquisition with microphone arrays. Based on psychoacoustic considerations, we formulate a constrained optimization problem in which the array weights are chosen to minimize the response to farfield sources while maintaining a unity-gain constraint for the source signal
Keywords :
array signal processing; microphones; optimisation; speech intelligibility; array weights; beamforming; constrained optimization problem; farfield sources; microphone arrays; psychoacoustic considerations; randomly distributed sensor array; sensor array interior; source signal; speech acquisition; unity-gain constraint; Array signal processing; Australia; Constraint optimization; Educational institutions; Geometry; Microphone arrays; Psychology; Sensor arrays; Signal processing; Speech;
Conference_Titel :
Signal Processing and Its Applications, 1999. ISSPA '99. Proceedings of the Fifth International Symposium on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-86435-451-8
DOI :
10.1109/ISSPA.1999.815810
