[Oral Presentation]A Note on The Maximum Number of Sources in DOA Estimation by MODE - THE ELEVENTH IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP (IEEE SAM2020)

A Note on The Maximum Number of Sources in DOA Estimation by MODE

ID：29 Submission ID：306 View Protection：ATTENDEE Updated Time：2020-08-05 10:16:59 Hits：468 Oral Presentation

Start Time：2020-06-09 14:40 （Asia/Shanghai）

Duration：20min

Session：[R] Regular Session » [R05] Beamforming and Direction-of-Arrival Estimation

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Abstract

This paper discusses the maximum number of sources when their direction of arrivals (DOAs) are estimated by the method of direction estimation (MODE), and presents a modified version of MODE that can estimate more number of sources than that by the original MODE. It is well-known that M-element array can basically estimate up to (M-1) DOAs, however the application of MODE may reduce up to M/2 DOAs because of its computation procedure. We propose a novel DOA estimation method by modifying MODE to employ peak-search of the primary eigenvector beam patterns instead of the null-search in the original MODE. Performance of the proposed method is evaluated through computer simulation.

Keywords

direction-of-arrival estimation; MODE; array signal processing

Speaker

Shohei Hamada

Yokohama National University, Japan

Submission Author

Shohei Hamada Yokohama National University, Japan

Koichi Ichige Yokohama National University, Japan