DOA Estimation Using Single or Dual Reception Channels Based on Cyclostationarity

This paper addresses the problem of direction-of-arrival (DOA) estimation for cyclostationary signals using less reception channel in comparison with the number of sensors. The system is considered to be realized by using the reception channel(s) to receive the signal reached each sensor in turn. Su...

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Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.54787-54795
Main Authors: Wang, Zhangsheng, Xie, Wei, Zou, Yanbin, Wan, Qun
Format: Article
Language:English
Subjects:
Algorithms
Channel estimation
Channels
Covariance matrices
cyclostationarity
Direction of arrival
Direction-of-arrival (DOA) estimation
Direction-of-arrival estimation
dual channels cyclic MUSIC algorithm
Estimation
Multiple signal classification
Music
Sensors
Signal processing algorithms
single channel cyclic MUSIC algorithm
Switching
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Summary:This paper addresses the problem of direction-of-arrival (DOA) estimation for cyclostationary signals using less reception channel in comparison with the number of sensors. The system is considered to be realized by using the reception channel(s) to receive the signal reached each sensor in turn. Such simplification results in a cost reduction of the system and the effect of inconsistency among different channels are removed. However, non-synchronized sampling also makes the traditional DOA estimation algorithms ineffective. To cope with the problem, the signal models for DOA estimation using a single channel and dual channels are formulated based on signal cyclostationary, and the single channel cyclic MUSIC (SC-Cyclic-MUSIC) algorithm and the dual channels cyclic MUSIC (DC-Cyclic-MUSIC) algorithm are proposed correspondingly. This paper shows that both SC-Cyclic-MUSIC algorithm and DC-Cyclic-MUSIC algorithm work well when the switching interval is known, and a satisfied performance can also be obtained by DC-Cyclic-MUSIC algorithm when the uncertainty of the switching interval exists. Moreover, the proposed estimators are suitable for both narrow-band and wide-band signals. The computer simulations are provided to verify the effectiveness of the proposed algorithms.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2912907