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Abstract
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Article Information:
Beamforming in Short Time Fractional Fourier Domain (FRFD)
Mostafa Rahmani and Hassan Ghassemian
Corresponding Author: Mostafa Rahmani
Submitted: May 08, 2012
Accepted: June 08, 2012
Published: September 15, 2012 |
Abstract:
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This study aims to generate a model for the problem of beamforming in fractional Fourier
domain, through which a general solution for obtaining weighted beamforming in fractional Fourier
domain for different criteria might be delivered. In order to generate this model, a description of fractional
delay concept is presented, through which the string vector in fractional Fourier domain is calculated and a
model for beamforming in fractional Fourier domain is generated which is similar to that used for obtaining
weighted beamforming in time domain for narrow-band signals. To complement our solution, a method for
obtaining the optimal fractional domain as well as direction of arrival in optimal fractional Fourier domain.
Key words: Array processing, beamforming, direction of arrival, fractional fourier domain, fractional fourier transform, steering vector,
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Cite this Reference:
Mostafa Rahmani and Hassan Ghassemian, . Beamforming in Short Time Fractional Fourier Domain (FRFD). Research Journal of Applied Sciences, Engineering and Technology, (18): 3510-3515.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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