DOA Resolution Enhancement of Incoherent Sources Using Virtual Expansion of Antenna Arrays

Heung-Yong KANG; Young-Su KIM; Chang-Joo KIM; Han-Kyu PARK

DOA Resolution Enhancement of Incoherent Sources Using Virtual Expansion of Antenna Arrays

Heung-Yong KANG, Young-Su KIM, Chang-Joo KIM, Han-Kyu PARK

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In this paper, we propose a resolution enhancement method for estimating direction-of-arrival (DOA) of narrowband incoherent signals incident on a general array. The resolution of DOA algorithm is dependent on the aperture size of antenna array. But it is very impractical to increase the physical size of antenna array in real environment. We propose the method that improves resolution performance by virtually expanding the sensor spacing of original antenna array and then averaging the spatial spectrum of each virtual array which has a different aperture size. Superior resolution capabilities achieved with this method are shown by simulation results in comparison with the standard MUSIC for incoherent signals incident on a uniform circular array.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.8 pp.2073-2076

Publication Date: 2004/08/01

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Type of Manuscript: PAPER

Category: Digital Signal Processing

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Heung-Yong KANG, Young-Su KIM, Chang-Joo KIM, Han-Kyu PARK, "DOA Resolution Enhancement of Incoherent Sources Using Virtual Expansion of Antenna Arrays" in IEICE TRANSACTIONS on Fundamentals, vol. E87-A, no. 8, pp. 2073-2076, August 2004, doi: .
Abstract: In this paper, we propose a resolution enhancement method for estimating direction-of-arrival (DOA) of narrowband incoherent signals incident on a general array. The resolution of DOA algorithm is dependent on the aperture size of antenna array. But it is very impractical to increase the physical size of antenna array in real environment. We propose the method that improves resolution performance by virtually expanding the sensor spacing of original antenna array and then averaging the spatial spectrum of each virtual array which has a different aperture size. Superior resolution capabilities achieved with this method are shown by simulation results in comparison with the standard MUSIC for incoherent signals incident on a uniform circular array.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/e87-a_8_2073/_p

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@ARTICLE{e87-a_8_2073,
author={Heung-Yong KANG, Young-Su KIM, Chang-Joo KIM, Han-Kyu PARK, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={DOA Resolution Enhancement of Incoherent Sources Using Virtual Expansion of Antenna Arrays},
year={2004},
volume={E87-A},
number={8},
pages={2073-2076},
abstract={In this paper, we propose a resolution enhancement method for estimating direction-of-arrival (DOA) of narrowband incoherent signals incident on a general array. The resolution of DOA algorithm is dependent on the aperture size of antenna array. But it is very impractical to increase the physical size of antenna array in real environment. We propose the method that improves resolution performance by virtually expanding the sensor spacing of original antenna array and then averaging the spatial spectrum of each virtual array which has a different aperture size. Superior resolution capabilities achieved with this method are shown by simulation results in comparison with the standard MUSIC for incoherent signals incident on a uniform circular array.},
keywords={},
doi={},
ISSN={},
month={August},}

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TY - JOUR
TI - DOA Resolution Enhancement of Incoherent Sources Using Virtual Expansion of Antenna Arrays
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2073
EP - 2076
AU - Heung-Yong KANG
AU - Young-Su KIM
AU - Chang-Joo KIM
AU - Han-Kyu PARK
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2004
AB - In this paper, we propose a resolution enhancement method for estimating direction-of-arrival (DOA) of narrowband incoherent signals incident on a general array. The resolution of DOA algorithm is dependent on the aperture size of antenna array. But it is very impractical to increase the physical size of antenna array in real environment. We propose the method that improves resolution performance by virtually expanding the sensor spacing of original antenna array and then averaging the spatial spectrum of each virtual array which has a different aperture size. Superior resolution capabilities achieved with this method are shown by simulation results in comparison with the standard MUSIC for incoherent signals incident on a uniform circular array.
ER -