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Effects of mutual coupling on super-resolution DF in linear arrays

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2 Author(s)
C. Roller ; Melpar Div., E-Systems, Fairfax, VA, USA ; W. Wasylkiwskyj

The traditional narrowband array signal processing model is expanded by incorporating the effects of mutual coupling via a closed-form expression for the array impedance matrix. The mutual coupling matrix affects the incident signal like a set of narrowband beamformers; this interpretation is explored. The array's super-resolution direction finding (SRDF) behavior/performance in the presence of mutual coupling is explored. Simulation results examine the effects of mismatch in antenna termination impedance upon DF performance, using parameters from a typical mobile cellular radio environment scenario. The results indicate that array DF performance can be improved by mismatching the array terminations, thus reducing the effect of mutual coupling

Published in:

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on  (Volume:5 )

Date of Conference:

23-26 Mar 1992