Detection-Estimation in Sensor Arrays without Eigendecompositions
Summary :
High resolution algorithms in sensor arrays lead to accurate results but with expensive eigendecompositions making its use in real-time applications such as mobile communications relatively difficult. In this paper, a trade-off between accuracy and computational load is accomplished through a simplified algorithm which instead of eigendecompositions, uses the robust QR decomposition for which many effcient parallel (systolic, wavefront array) implementations exist. First, a simple detection scheme is presented and, through simulations, is shown to work very well for sufficient SNR, even when signals are coherent. Outputs of the detection process include simultaneously estimates of signals Direction Of Arrivals (DOA's) and a simple beamformer vector resulting in an estimate of the desired signal. Extensive simulations are performed assuming different scenarios of variations in SNR, DOA's leading to discussions on the possibilities and limitations of the proposed solution.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E79-B No.8 pp.1147-1155
- Publication Date
- 1996/08/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Antennas and Propagation
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Abdesselam KLOUCHE-DJEDID, Ryu MIURA, "Detection-Estimation in Sensor Arrays without Eigendecompositions" in IEICE TRANSACTIONS on Communications,
vol. E79-B, no. 8, pp. 1147-1155, August 1996, doi: .
Abstract: High resolution algorithms in sensor arrays lead to accurate results but with expensive eigendecompositions making its use in real-time applications such as mobile communications relatively difficult. In this paper, a trade-off between accuracy and computational load is accomplished through a simplified algorithm which instead of eigendecompositions, uses the robust QR decomposition for which many effcient parallel (systolic, wavefront array) implementations exist. First, a simple detection scheme is presented and, through simulations, is shown to work very well for sufficient SNR, even when signals are coherent. Outputs of the detection process include simultaneously estimates of signals Direction Of Arrivals (DOA's) and a simple beamformer vector resulting in an estimate of the desired signal. Extensive simulations are performed assuming different scenarios of variations in SNR, DOA's leading to discussions on the possibilities and limitations of the proposed solution.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e79-b_8_1147/_p
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@ARTICLE{e79-b_8_1147,
author={Abdesselam KLOUCHE-DJEDID, Ryu MIURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Detection-Estimation in Sensor Arrays without Eigendecompositions},
year={1996},
volume={E79-B},
number={8},
pages={1147-1155},
abstract={High resolution algorithms in sensor arrays lead to accurate results but with expensive eigendecompositions making its use in real-time applications such as mobile communications relatively difficult. In this paper, a trade-off between accuracy and computational load is accomplished through a simplified algorithm which instead of eigendecompositions, uses the robust QR decomposition for which many effcient parallel (systolic, wavefront array) implementations exist. First, a simple detection scheme is presented and, through simulations, is shown to work very well for sufficient SNR, even when signals are coherent. Outputs of the detection process include simultaneously estimates of signals Direction Of Arrivals (DOA's) and a simple beamformer vector resulting in an estimate of the desired signal. Extensive simulations are performed assuming different scenarios of variations in SNR, DOA's leading to discussions on the possibilities and limitations of the proposed solution.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Detection-Estimation in Sensor Arrays without Eigendecompositions
T2 - IEICE TRANSACTIONS on Communications
SP - 1147
EP - 1155
AU - Abdesselam KLOUCHE-DJEDID
AU - Ryu MIURA
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E79-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1996
AB - High resolution algorithms in sensor arrays lead to accurate results but with expensive eigendecompositions making its use in real-time applications such as mobile communications relatively difficult. In this paper, a trade-off between accuracy and computational load is accomplished through a simplified algorithm which instead of eigendecompositions, uses the robust QR decomposition for which many effcient parallel (systolic, wavefront array) implementations exist. First, a simple detection scheme is presented and, through simulations, is shown to work very well for sufficient SNR, even when signals are coherent. Outputs of the detection process include simultaneously estimates of signals Direction Of Arrivals (DOA's) and a simple beamformer vector resulting in an estimate of the desired signal. Extensive simulations are performed assuming different scenarios of variations in SNR, DOA's leading to discussions on the possibilities and limitations of the proposed solution.
ER -
English
