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Direction-of-Arriva...
Direction-of-Arrival Estimation in the Presence of Phase Noise
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- Lu, Rui (författare)
- Xi'an Jiaotong University
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- Zhang, Ming (författare)
- Xi'an Jiaotong University
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- Chen, Xiaoming (författare)
- Xi'an Jiaotong University,Southeast University
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- Zhang, Anxue (författare)
- Xi'an Jiaotong University
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- Svensson, Tommy, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2020
- 2020
- Engelska.
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Ingår i: IEEE Communications Letters. - 1558-2558 .- 1089-7798. ; 24:8, s. 1710-1714
- Relaterad länk:
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https://research.cha...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This letter proposes a robust direction-of-arrival (DoA) estimator in the presence of phase noise (PN). For a multi-antenna system with independent oscillators, the received signals will be corrupted by multiple independent PN sources, resulting in severe performance degradation of the DoA estimator, especially for millimeter-wave systems. However, due to the time-varying nature of PN, the number of associated unknowns grows with the size of the snapshots, making the calibration challenging. To tackle this problem, we use a piece-wise linear model to approximate PN so that the number of associated unknowns can be reduced. Then we estimate the DoA and the PN parameters iteratively via a nonlinear least squares estimator. To evaluate the effectiveness of the proposed scheme, the Cramer-Rao lower bound (CRLB) of the DoA estimation in the presence of PN is derived. Numerical results show a significant performance improvement of the proposed DoA estimator compared to the results without calibration.
Ämnesord
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Minimization
- millimeter-wave
- nonlinear least squares
- Millimeter wave communication
- Radio frequency
- Direction-of-arrival estimation
- phase noise
- Oscillators
- Direction-of-arrival (DoA)
- Calibration
- Estimation
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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