Presentation 2002/2/27
Performance Evaluation of DOA Estimation Algorithms in Digital Implementation
Masashi SHINAGAWA, Koichi ICHIGE, Hiroyuki ARAI,
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Abstract(in English) In this paper, we study the properties and drawbacks of representative DOA (direction of arrival) estimation algorithms such as MUSIC, Root-MUSIC, and Unitary-ESPRIT by investigating the influence of quantization errors in digital operations for various cases. We also verify which algorithm is the most suitable for the implementation by finite word-length digital processors. First we examine the characteristics of DOA algorithms through some computer simulation. Here we change ODA angle, the number of snapshots, SNR, the number of array elements, and the correlation of incident waves. Then we study the internal quantization error of DOA algorithms, and derive the bit length required for the accurate DOA estimation. We change bit length of the internal operation of each algorithm, and examine the relation between estimation accaracy and bit length.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) DOA Estimation / Adaptive array antenna / MUSIC / Root-MUSIC / ESPRIT / quantization error
Paper # MoMuC2001-52
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Committee MoMuC
Conference Date 2002/2/27(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Evaluation of DOA Estimation Algorithms in Digital Implementation
Sub Title (in English)
Keyword(1) DOA Estimation
Keyword(2) Adaptive array antenna
Keyword(3) MUSIC
Keyword(4) Root-MUSIC
Keyword(5) ESPRIT
Keyword(6) quantization error
1st Author's Name Masashi SHINAGAWA
1st Author's Affiliation Faculty of Engineering, Division of Electrical and Computer Engineering, Yokohama National University()
2nd Author's Name Koichi ICHIGE
2nd Author's Affiliation Faculty of Engineering, Division of Electrical and Computer Engineering, Yokohama National University
3rd Author's Name Hiroyuki ARAI
3rd Author's Affiliation Faculty of Engineering, Division of Electrical and Computer Engineering, Yokohama National University
Date 2002/2/27
Paper # MoMuC2001-52
Volume (vol) vol.101
Number (no) 685
Page pp.pp.-
#Pages 6
Date of Issue