NDLI: Compensation for the mutual coupling effect in the ESPRIT direction finding algorithm by using a more effective method

Content Provider	IEEE Xplore Digital Library
Author	Tong Tong Zhang Hon Tat Hui Lu, Y.L.
Copyright Year	1963
Abstract	An effective method is introduced to compensate for the mutual coupling effect in the estimation of signal parameter via rotational invariance techniques (ESPRIT) direction finding algorithm. The compensation method seeks to quantify the mutual coupling more accurately by using a new mutual impedance. Study of two closely spaced arriving signals shows that the high-resolution capability of ESPRIT can be achieved only when the mutual coupling effect is compensated for by using our new compensation method. Critical situations with a large signal level difference, with an increased mutual coupling effect resulting from a more compact-size antenna array, and with signals coming from a nonhorizontal elevation angle are also studied using the ESPRIT algorithm. Results show that the new compensation method, when applied to ESPRIT, is more accurate, more robust, and more flexible than the previous open-circuit voltage method.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1552
Ending Page	1555
Page Count	4
File Size	179492
File Format	PDF
ISSN	0018926X
Volume Number	53
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mutual coupling Voltage Multiple signal classification Impedance Parameter estimation Antenna arrays Robustness Covariance matrix Interference Receiving antennas mutual impedance Direction finding estimation of signal parameter via rotational invariance techniques (ESPRIT) mutual coupling
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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