Spread spectrum communication device and communica

专利名称：Spread spectrum communication device and

communication system

发明人：Takashi Shiba,Akitsuna Yuhara,Yoshihiro

Yamada,Yasuhiro Ohta

申请号：US10730003申请日：20031209

公开号：US20040120388A1公开日：20040624

专利附图：

摘要：A structure of a spectrum spreading communication device which solves theproblem with the conventional spectrum spreading communication using Barker codes,

etc., and limits the rise of the side-lobe of a correctional signal independently of theorder of information codes by use of a code sequence having a code length of at least14. The spectrum spreading communication device uses a pseudo-noise code having codelength of at least 14 and a self-correlation side-lobe of not greater than 3 as a pseudo-noise code of a direct spreading communication device which uses the pseudo-noisecodes whose polarities are inverted so as to deal with also digital information. Thus, evenwhen the pseudo-noise code length is 14 or more, the side-lobe of the correctioncoefficient can be restricted. Accordingly, the error rate of the spectrum spreadingcommunication device is reduced and the processing gain is improved.

申请人：SHIBA TAKASHI,YUHARA AKITSUNA,YAMADA YOSHIHIRO,OHTA YASUHIRO

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