| Presentation | 2006-04-21 A Precise Estimation of Unknown Weight Vector Subspace for Multi-target Constant Modulus Algorithm Yosuke FUJINO, Daisei UCHIDA, Osamu KAGAMI, Kazuji WATANABE, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multi-target Constant Modulus Algorithm has been known as a method for blindly separating multiple cochannel signals by an antenna array. This conventional method sequentially estimates the weight vector of each user under a subspace constraint based on the orthogonality of array output signals. However, when the number of co-channel signals exceeds the number of antenna or SNR is low, the estimation performance degrades due to loss of the orthogonality. In order to this problem, we propose a new subspace estimation method based on characteristics of signal covariance matrix, which is independent of the orthogonality. Computer simulation results show that the proposed method offers higher SINR than the conventional one, and SINR of proposed method close to that of MMSE. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-user detection / adaptive array / blind algorithm / Constant Modulus Algorithm / Multi-target CMA |
| Paper # | RCS2006-3 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/4/14(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) | A Precise Estimation of Unknown Weight Vector Subspace for Multi-target Constant Modulus Algorithm |
| Sub Title (in English) | |
| Keyword(1) | multi-user detection |
| Keyword(2) | adaptive array |
| Keyword(3) | blind algorithm |
| Keyword(4) | Constant Modulus Algorithm |
| Keyword(5) | Multi-target CMA |
| 1st Author's Name | Yosuke FUJINO |
| 1st Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation() |
| 2nd Author's Name | Daisei UCHIDA |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Osamu KAGAMI |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Kazuji WATANABE |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2006-04-21 |
| Paper # | RCS2006-3 |
| Volume (vol) | vol.106 |
| Number (no) | 25 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |