Modified MODE for Increasing the Maximum Number of Sources in DOA Estimation

Shohei Hamada; Koichi Ichige

doi:10.1587/comex.2021XBL0085

This article has now been updated. Please use the final version.

Modified MODE for Increasing the Maximum Number of Sources in DOA Estimation

Shohei Hamada, Koichi Ichige

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Keywords: direction of arrival estimation, MODE, array signal processing, number of sources

JOURNAL FREE ACCESS Advance online publication

Article ID: 2021XBL0085

DOI https://doi.org/10.1587/comex.2021XBL0085

The final version of this article is now available: Vol. 10 (2021), No. 7 pp. 391-397

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Abstract

This paper presents a modified version of the method of direction estimation (MODE) that can estimate a greater number of sources than the original MODE. It is well-known that M-element arrays can basically estimate up to (M-1) direction of arrivals (DOAs), whereas MODE can only estimate up to M/2 DOAs because of its error-sensitive computation procedure. We propose a modified version of MODE that can estimate up to (M-1) DOAs. The performance of the proposed method was evaluated through computer simulation.

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