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On the improvement of the mutual coupling compensation in DOA estimation

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2 Author(s)
Wu Yujiang ; Tongyu Comm. Equipment Co. Ltd., Zhangshan 528437, P.R. China ; Nie Zaiping

A new and exact calculation method for the mutual impedance matrix of receiving arrays is proposed. The mutual impedance matrix is derived from electromagnetic boundary conditions and can be used to relate the coupling free open-circuit voltages, instead of the conventional ones, to the measured voltages. A remarkable improvement on compensation for the coupling effects is shown in the direction finding applications, while a simple relationship between measured terminal voltages and the coupling free voltages is remained.

Published in:

Journal of Systems Engineering and Electronics  (Volume:19 ,  Issue: 1 )