Single-snapshot adaptive beamforming

Yujie Gu; Yimin D. Zhang

doi:10.1109/sam.2018.8448680

Single-snapshot adaptive beamforming

Yujie Gu, Yimin D. Zhang

Temple University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

9 Scopus citations

Abstract

Adaptive beamformers are sensitive to model mismatch, especially when the number of training samples is small or the training samples are contaminated by the signal component. In this paper, we consider an extreme scenario where only a single signal-contaminated snapshot is available for adaptive beamformer design. In such a case, we cannot perform direct inversion or eigen-decomposition of the rank-one sample covariance matrix required in adaptive beamformer design. To address this issue, we formulate a sparsity-constrained covariance matrix fitting problem to estimate the spatial spectrum distribution over the observed spatial domain, which is then used for adaptive beamformer design via the sparse reconstruction of the interference-plus-noise covariance matrix. Simulation results demonstrate the performance advantage of the proposed adaptive beamforming algorithm over other beamforming algorithms suitable for the single-snapshot scenario.

Original language	English
Title of host publication	2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018
Publisher	IEEE Computer Society
Pages	129-133
Number of pages	5
ISBN (Print)	9781538647523
DOIs	https://doi.org/10.1109/sam.2018.8448680
State	Published - 27 Aug 2018
Externally published	Yes
Event	10th IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2018 - Sheffield, United Kingdom Duration: 8 Jul 2018 → 11 Jul 2018

Publication series

Name	Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume	2018-July
ISSN (Electronic)	2151-870X

Conference

Conference	10th IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2018
Country/Territory	United Kingdom
City	Sheffield
Period	8/07/18 → 11/07/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

Adaptive beamforming
Covariance matrix fitting
Covariance matrix reconstruction
Single snapshot
Sparsity

Access to Document

10.1109/sam.2018.8448680

Cite this

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title = "Single-snapshot adaptive beamforming",

abstract = "Adaptive beamformers are sensitive to model mismatch, especially when the number of training samples is small or the training samples are contaminated by the signal component. In this paper, we consider an extreme scenario where only a single signal-contaminated snapshot is available for adaptive beamformer design. In such a case, we cannot perform direct inversion or eigen-decomposition of the rank-one sample covariance matrix required in adaptive beamformer design. To address this issue, we formulate a sparsity-constrained covariance matrix fitting problem to estimate the spatial spectrum distribution over the observed spatial domain, which is then used for adaptive beamformer design via the sparse reconstruction of the interference-plus-noise covariance matrix. Simulation results demonstrate the performance advantage of the proposed adaptive beamforming algorithm over other beamforming algorithms suitable for the single-snapshot scenario.",

keywords = "Adaptive beamforming, Covariance matrix fitting, Covariance matrix reconstruction, Single snapshot, Sparsity",

author = "Yujie Gu and Zhang, {Yimin D.}",

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year = "2018",

month = aug,

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doi = "10.1109/sam.2018.8448680",

language = "אנגלית",

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series = "Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop",

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Gu, Y & Zhang, YD 2018, Single-snapshot adaptive beamforming. in 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018., 8448680, Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop, vol. 2018-July, IEEE Computer Society, pp. 129-133, 10th IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2018, Sheffield, United Kingdom, 8/07/18. https://doi.org/10.1109/sam.2018.8448680

Single-snapshot adaptive beamforming. / Gu, Yujie; Zhang, Yimin D.
2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. IEEE Computer Society, 2018. p. 129-133 8448680 (Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop; Vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Single-snapshot adaptive beamforming

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