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Title:
SIGNAL PROCESSOR
Document Type and Number:
Japanese Patent JP3887616
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide signal processing capable of surely detecting code correlations.
SOLUTION: Fig. (a) shows, for example, processing for signals of 64 8-chip complex E series codes. Fig. (b) shows processing in a preprocessing part 382. In the preprocessing part 382, a signal Yi being in complementary relation to inputted signal Xi is added. In a correlation detection part 384, preprocessed signals are inputted to 64 prepared matched filters 301 to 364 respectively, and a comparison circuit 370 detects which filter matching has been detected in, as shown by Fig. (c).


Inventors:
End Hiro Naoki
Application Number:
JP2003274952A
Publication Date:
February 28, 2007
Filing Date:
July 15, 2003
Export Citation:
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Assignee:
Naoki Suehiro
International Classes:
H04B1/707; H04B1/7093; (IPC1-7): H04B1/707
Domestic Patent References:
JP3301724B2
Foreign References:
WO1994029970A1
Other References:
Yasuo TAKI et al.,Even-Shift Orthogonal Sequences,IEEE TRANSACTIONS ON INFORMATION THEORY,VOL.IT-15, No.2,1969年 3月,pp.295-300
阿久津 貴之、丸林 元,E系列を用いた並列組合せSS通信方式,電子情報通信学会技術研究報告,Vol.92, No.200,1992年 8月27日,pp.7-11,SST92-52
末広 直樹 外3名,E系列対を用いた耐バースト雑音情報伝送,電子情報通信学会技術研究報告,1997年 6月19日,Vol.97, No.103,pp.67-71,SAT97-23
末広 直樹 外2名,完全相補系列を用いたチャネル間干渉の無い近似同期CDMAにおけるマルチパスの推定と信号の畳み込みによる周波数利用効率の飛躍的増大,電子情報通信学会技術研究報告,1999年 6月18日,Vol.99, No.126,pp.35-39,SAT99-32
Attorney, Agent or Firm:
Susumu Kako