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电子学报  2000 

空时发射分集CDMA的多径分集接收

, PP. 62-66

Keywords: 空时发射分集,宽带码分多址,RAKE接收机,衰落信道,码间干扰,多址干扰

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Abstract:

本文研究了采用STTD(spacetimetransmitdiversity)技术的随机序列扩频CDMA(codedivisionmultipleaccess),在频率选择性慢衰落信道中的单用户RAKE接收机在径数很大情况下的性能,并与没有采用STTD的CDMA系统的RAKE接收机的性能进行了比较.结果表明,STTD技术的采用,增强了多址干扰环境中RAKE接收机的抗衰落性能.本文也给出了由STTD所引入的码间干扰及多址干扰对RAKE接收机性能的影响.

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