发明名称 SATELLITE COMMUNICATIONS SYSTEM, TRANSMITTER, RECEIVER, AND SATELLITE COMMUNICATION METHOD USED FOR THEM
摘要 <p><P>PROBLEM TO BE SOLVED: To provide the satellite communications system capable of alleviate interference among different channels, even if the difference in the strength of a received signal is marked among the different channels. <P>SOLUTION: The satellite communications system comprises a means (frequency-generating portion 11 and frequency-converting portion 12), in at least either a transmitting circuit (1) or a receiving circuit. The means is used for allocating the center frequency which is different for each spread code in a spread spectrum communication system. It becomes possible to suppress correlation with other channels, by allocating a different center frequency for each spread code, and thereby, correlation with other channels can be lowered for each spread code. <P>COPYRIGHT: (C)2009,JPO&INPIT</p>
申请公布号 JP2009200657(A) 申请公布日期 2009.09.03
申请号 JP20080038125 申请日期 2008.02.20
申请人 NEC CORP 发明人 HIGASHITANI TOMOJI
分类号 H04B7/216;H04B1/7075;H04B1/7103;H04B7/155;H04J1/12;H04J13/00 主分类号 H04B7/216
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