New DOA Estimation Method for Wideband Coherent Signals in the Presence of Correlated Noise
2012 ◽
Vol 263-266
◽
pp. 157-161
◽
Keyword(s):
With a uniform linear antenna array, a new direction-of-arrival (DOA) estimation method is proposed for wideband coherent signals in the presence of unknown correlated noise but with structured covariance matrix. Based on this proposed structure, i.e. Hermitian Toeplitz, a spatial differencing operation that exploits this symmetry is applied to remove the effect of the unknown noise and a new matrix is constructed accordingly at each frequency bin. Following this step, a focusing operation is performed to give the corresponding aligned covariance matrix. Finally, an eigenstructure-based DOA estimation method is applied. The validity of the method is supported by numerical simulation under various conditions.
2019 ◽
Vol 17
(12.2)
◽
pp. 35
Keyword(s):
2021 ◽
Vol 5
(2)
◽
pp. 107-114
2017 ◽
Vol 2017
◽
pp. 1-10
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2012 ◽
Vol 195-196
◽
pp. 109-114
2014 ◽
Vol 3
(2)
◽
pp. 22-26
Keyword(s):