dc.contributor.author |
McDonald, Andre M
|
|
dc.contributor.author |
Van Wyk, MN
|
|
dc.date.accessioned |
2020-10-05T09:01:39Z |
|
dc.date.available |
2020-10-05T09:01:39Z |
|
dc.date.issued |
2019-11 |
|
dc.identifier.citation |
McDonald, A.M. and Van Wyk, M.N. 2019. A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques. Institute of Electrical and Electronics Engineers (IEEE) 15th Annual Asia Pacific Conference on Circuits and Systems (APCCAS), Bangkok, Thailand, 11-14 November 2019, 4pp. |
en_US |
dc.identifier.isbn |
978-1-7281-3055-2 |
|
dc.identifier.isbn |
978-1-7281-3054-5 |
|
dc.identifier.uri |
https://ieeexplore.ieee.org/document/8950749
|
|
dc.identifier.uri |
DOI:10.1109/PrimeAsia47521.2019.8950749
|
|
dc.identifier.uri |
http://hdl.handle.net/10204/11593
|
|
dc.description |
Copyright: 2019 IEEE. This is the accepted version of the published item. |
en_US |
dc.description.abstract |
Toeplitz decorrelation techniques, as applied towards direction-of-arrival estimation of coherent narrowband signals using a sensor array, significantly improve the accuracy of subspace methods without reducing the effective array aperture. The novel contribution of this paper is a necessary and sufficient condition that any jointly Toeplitz and Hermitian matrix produced by these techniques must satisfy in order to facilitate unbiased estimation via a subspace method. The condition is derived for a uniform linear array and additive white Gaussian noise model. The row-selection and diagonal-averaging strategies for generating Toeplitz matrices are evaluated against the condition, for the case where all sources are coherent. It is proved that row selection accommodates unbiased estimation if and only if the first row of the deficient covariance matrix is selected, whereas diagonal averaging invariably leads to bias. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
IEEE |
en_US |
dc.relation.ispartofseries |
Worklist;23078 |
|
dc.subject |
Angle of arrival estimation |
en_US |
dc.subject |
Coherent sources |
en_US |
dc.subject |
Correlated sources |
en_US |
dc.subject |
Direction of arrival estimation |
en_US |
dc.subject |
Multiple signal classification |
en_US |
dc.subject |
MUSIC |
en_US |
dc.subject |
Spectral estimation |
en_US |
dc.subject |
Toeplitz decorrelation |
en_US |
dc.title |
A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
McDonald, A. M., & Van Wyk, M. (2019). A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques. IEEE. http://hdl.handle.net/10204/11593 |
en_ZA |
dc.identifier.chicagocitation |
McDonald, Andre M, and MN Van Wyk. "A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques." (2019): http://hdl.handle.net/10204/11593 |
en_ZA |
dc.identifier.vancouvercitation |
McDonald AM, Van Wyk M, A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques; IEEE; 2019. http://hdl.handle.net/10204/11593 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - McDonald, Andre M
AU - Van Wyk, MN
AB - Toeplitz decorrelation techniques, as applied towards direction-of-arrival estimation of coherent narrowband signals using a sensor array, significantly improve the accuracy of subspace methods without reducing the effective array aperture. The novel contribution of this paper is a necessary and sufficient condition that any jointly Toeplitz and Hermitian matrix produced by these techniques must satisfy in order to facilitate unbiased estimation via a subspace method. The condition is derived for a uniform linear array and additive white Gaussian noise model. The row-selection and diagonal-averaging strategies for generating Toeplitz matrices are evaluated against the condition, for the case where all sources are coherent. It is proved that row selection accommodates unbiased estimation if and only if the first row of the deficient covariance matrix is selected, whereas diagonal averaging invariably leads to bias.
DA - 2019-11
DB - ResearchSpace
DP - CSIR
KW - Angle of arrival estimation
KW - Coherent sources
KW - Correlated sources
KW - Direction of arrival estimation
KW - Multiple signal classification
KW - MUSIC
KW - Spectral estimation
KW - Toeplitz decorrelation
LK - https://researchspace.csir.co.za
PY - 2019
SM - 978-1-7281-3055-2
SM - 978-1-7281-3054-5
T1 - A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques
TI - A condition for unbiased direction-of-arrival estimation with Toeplitz decorrelation techniques
UR - http://hdl.handle.net/10204/11593
ER -
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en_ZA |