NDLI: Fast mutual coupling compensation algorithm for large adaptive antenna array

Content Provider	IEEE Xplore Digital Library
Author	Zaharov, V.V. Lobaina, A.L. Rodriguez, J.L. Soto, R.A.
Copyright Year	2009
Description	Author affiliation: Universidad Anahuac Norte, Huixquilucan, Edo.de Mexico, Mexico (Lobaina, A.L.) \|\| Polytechnic University of Puerto Rico, San Juan, 00918, Puerto Rico (Zaharov, V.V.; Rodriguez, J.L.; Soto, R.A.)
Abstract	The mutual coupling between antenna array elements degrades the performance of spatial processing algorithm, such as signal-to-interference-plus-noise ratio (SINR) in output of antenna array, antenna gain, and so on. If the mutual coupling matrix (MCM) is known, mutual coupling effect can be mitigated by pre-multiplying the input signal by the inverse of the coupling matrix (assuming that it is invertible). Unfortunately, it requires intensive computational work with the cost of $O(N^{2}),$ where N is a number of antenna elements, especially for large antenna array applications. Taking into account that MCM has the Toeplitz structure, we propose to mitigate the mutual coupling with the cost of O(MlogM) by using fast algorithm that involve circular convolution, where 2N ≤ M < 4N and M is a number of power two. The performance of large adaptive antenna array in the presence of mutual coupling as well as after decoupling is discussed.
Starting Page	586
Ending Page	589
File Size	726800
Page Count	4
File Format	PDF
ISBN	9781424444793
ISSN	15483746
DOI	10.1109/MWSCAS.2009.5236024
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-02
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive arrays Mutual coupling Antenna arrays Signal processing algorithms Sensor arrays Costs Digital signal processing Degradation Signal processing Signal to noise ratio
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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