| Presentation | 2002/2/27 Performance Evaluation of DOA Estimation Algorithms in Digital Implementation Masashi SHINAGAWA, Koichi ICHIGE, Hiroyuki ARAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| 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 DOA 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 accuracy and bit length. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DOA Estimation / Adaptive array antenna / MUSIC / Root-MUSIC / ESPRIT / quantization error |
| Paper # | RCS2001-255 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/2/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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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 # | RCS2001-255 |
| Volume (vol) | vol.101 |
| Number (no) | 682 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |