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Compensation for the mutual coupling effect for the ESPRIT algorithm in single snapshot array processing

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Journal of Electronics (China)

Abstract

An effective method is introduced to compensate the effects of mutual coupling for the Estimation of Signal Parameter via Rotational Invariance Techniques (ESPRIT) direction finding algorithm in application of signal snapshot array processing. Changing the covariance matrix into a Teoplitz matrix can achieve high resolution in the Direction Of Arrive (DOA) estimation. How the mutual coupling affects the array antennas has been discussed and a new definition of mutual impedance has been used to characterize the mutual coupling effects between the array elements. Based on the new mutual impedance matrix, a practical method is presented to eliminate the effects of mutual coupling for ESPRIT in the single snapshot data processing. The simulation results show that, this new method not only properly reduces the effects of mutual coupling, but also maintains its steady performance even for weak signals.

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Authors and Affiliations

  1. Department of Electrical and Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Lian Xiaohua, Zhou Jianjiang, Li Hailin & Cai Wenqi

  2. Representative office of Air Force Resident in the Nanjing Research Institute of Electronic Technology, Nanjing, 210013, China

    Cai Wenqi

Authors
  1. Lian Xiaohua
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  2. Zhou Jianjiang
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  3. Li Hailin
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  4. Cai Wenqi
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Corresponding author

Correspondence to Lian Xiaohua.

Additional information

Communication author: Lian Xiaohua, born in 1980, female, Ph.D. candidate. Box 304, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.

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Lian, X., Zhou, J., Li, H. et al. Compensation for the mutual coupling effect for the ESPRIT algorithm in single snapshot array processing. J. of Electron.(China) 24, 662–667 (2007). https://doi.org/10.1007/s11767-006-0037-1

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  • DOI: https://doi.org/10.1007/s11767-006-0037-1

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