@article{(Open Science Index):https://publications.waset.org/pdf/5427,
	  title     = {A Robust Extrapolation Method for Curtailed Aperture Reconstruction in Acoustic Imaging},
	  author    = {R. Bremananth},
	  country	= {},
	  institution	= {},
	  abstract     = {Acoustic Imaging based sound localization using microphone
array is a challenging task in digital-signal processing.
Discrete Fourier transform (DFT) based near-field acoustical holography
(NAH) is an important acoustical technique for sound source
localization and provide an efficient solution to the ill-posed problem.
However, in practice, due to the usage of small curtailed aperture
and its consequence of significant spectral leakage, the DFT could
not reconstruct the active-region-of-sound (AROS) effectively, especially
near the edges of aperture. In this paper, we emphasize the
fundamental problems of DFT-based NAH, provide a solution to
spectral leakage effect by the extrapolation based on linear predictive
coding and 2D Tukey windowing. This approach has been tested to
localize the single and multi-point sound sources. We observe that
incorporating extrapolation technique increases the spatial resolution,
localization accuracy and reduces spectral leakage when small curtail
aperture with a lower number of sensors accounts.},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {6},
	  number    = {8},
	  year      = {2012},
	  pages     = {973 - 988},
	  ee        = {https://publications.waset.org/pdf/5427},
	  url   	= {https://publications.waset.org/vol/68},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 68, 2012},
	}