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Robust DOA Estimator Against Mutual Coupling Using One-Bit Sampling

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Abstract

In this paper, we address the problem of direction-of-arrival (DOA) estimation using one-bit sampling in the presence of unknown mutual coupling. Firstly we reconstruct the normalized covariance matrix by utilizing the arcsine law. Subsequently, we construct single measurement vector model by employing matrix transformation and vectorizing the reconstructed normalized covariance matrix. Finally, we estimate the source DOAs by formulating a reweighted group sparse recovery problem. Based on the characteristics of one-bit quantized data, a low-complexity method is also provided to calculate the covariance matrix of one-bit measurements. Numerical results show that the proposed algorithm is obviously superior to the existing approaches.

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Acknowledgements

This work was supported in part by the National Natural Science Foundation of China under Grant 62171089, by the Natural Science Foundation of Sichuan Province under Grant 2022NSFSC0497, by the Sichuan Science and Technology Program under Grant 2022YFG0162, by the Guangdong Basic and Applied Basic Research Foundation under Grant 2023A1515011163, and by the Science and Technology Plan Project of Huzhou city under Grant 2023GZ16.

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Correspondence to Zhi Zheng.

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Guo, N., Zheng, Z. & Wang, WQ. Robust DOA Estimator Against Mutual Coupling Using One-Bit Sampling. Circuits Syst Signal Process 43, 2626–2638 (2024). https://doi.org/10.1007/s00034-023-02583-0

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