发明名称 |
SPACE MULTIPLEX SIGNAL DETECTION CIRCUIT |
摘要 |
PROBLEM TO BE SOLVED: To provide a space multiplex signal detection circuit capable of obtaining an excellent error rate characteristic by suppressing an increase in the circuit scale if when a modulation multivalued number is particularly increased in the case of receiving a signal subjected to space multiplexing to detect the signal. SOLUTION: A transmission signal candidate narrow-down circuit 108 refers to a proximity signal point data table 109 and stepwise narrows down the number of a plurality of transmission signal candidates to a prescribed number of the candidates. The proximity signal point data table 109 stores the cross-reference between signal points closer on a transmission constellation to signal points of transmission signals of each of transmission systems estimated by a transmission signal estimate circuit 107. A maximum likelihood estimate circuit 113 receives candidates of the transmission signal sequences and metrics corresponding to the candidates and outputs a transmission signal sequence whose metric value is least as a final transmission signal sequence. COPYRIGHT: (C)2006,JPO&NCIPI
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申请公布号 |
JP2006222872(A) |
申请公布日期 |
2006.08.24 |
申请号 |
JP20050036341 |
申请日期 |
2005.02.14 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
UCHIDA HIROMASA;KYO BUNKETSU;KIZAWA TAKESHI;ASAI YUSUKE;OTA ATSUSHI;AIKAWA SATOSHI |
分类号 |
H04J99/00;H04B7/04;H04J11/00 |
主分类号 |
H04J99/00 |
代理机构 |
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