Abstract
Most super-resolution direction finding methods need to know the array manifold exactly, but there is usually mutual coupling error in application, which directly leads to the performance degradation, and even failure. The paper proposed a novel calibration method in super-resolution direction finding for wideband signals based on spatial domain sparse optimization when mutual coupling exists in the array. First, the optimization functions are founded by the signals of every frequency bin, then the functions are optimized iteratively, after that the information of all frequencies is integrated for the calibration, finally, the actual directions of arrival (DOA) can be acquired, the performance of the method has been proved by simulations.
J. Zhen––This work was supported by the National Natural Science Foundation of China under Grant Nos. 61501176 and 61302074, University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province No. UNPYSCT-2016017, Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20122301120004, Natural Science Foundation of Heilongjiang Province under Grant No. QC2013C061.
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Acknowledgments
I would like to thank Professor Qun Ding, Heilongjiang province ordinary college electronic engineering laboratory and post doctoral mobile stations of Heilongjiang University.
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© 2018 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Zhen, J., Qin, D., Zhao, B. (2018). Mutual Coupling Calibration in Super-Resolution Direction Finding for Wideband Signals. In: Chen, Q., Meng, W., Zhao, L. (eds) Communications and Networking. ChinaCom 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 210. Springer, Cham. https://doi.org/10.1007/978-3-319-66628-0_50
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