Joint Estimation of DOA and Frequency of Multiple Sources with Orthogonal Coprime Arrays
Keyword(s):
A two-stage method is proposed to jointly estimate the direction-of-arrival (DOA) and carrier frequency (CF) of multiple sources, by using two orthogonal coprime arrays (CPAs). The DOAs of CF-known sources are estimated first by applying a spatial smoothing MUSIC algorithm. The contribution of these source signals is then removed from the originally received signal by applying an orthogonal complement projector. Next, a joint-ESPRIT algorithm is applied to estimate the DOAs and CFs of the remaining CF-unknown sources. With two orthogonal CPA(5, 6), the RMSE of DOA and CF of applying the proposed method to 30 sources, 13 of which have unknown CF, is less than 1% at SNR > 5 dB.
2021 ◽
Vol 2021
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pp. 1-16
2009 ◽
Vol E92-B
(6)
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pp. 2247-2250
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2020 ◽
Vol 63
(8)
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pp. 418-429
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2018 ◽
Vol 2018
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pp. 1-9
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2014 ◽
Vol 530-531
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pp. 530-533
2018 ◽
Vol 87
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pp. 164-172
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