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基于同步时间扩展处理的信道编码 被引量:2

Channel Coding Based on Synchronous Time Spreading
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摘要 对信号在时间域上进行扩展,使符号的持续时间增加,可以有效增强信号抗时间选择性衰落,特别是平坦性衰落的能力。理论分析表明通过同步时间扩展处理,时间选择性衰落可以被克服,衰落信道成为类加性白噪声信道。将时间扩展作为信道预编码处理技术,信道编码只需在加性白噪声环境下设计,这将减化信道编码设计和实现的复杂性,提高通信系统的可靠性。计算机仿真表明同步时间扩展作为信道预编码技术可以有效改善编码特性。
机构地区 北京邮电大学
出处 《无线电工程》 2004年第3期7-9,47,共4页 Radio Engineering
基金 国家863基金2001AA123016
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参考文献4

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同被引文献18

  • 1岳田,裴保臣.LDPC码的几种译码算法比较[J].无线电通信技术,2006,32(4):24-26. 被引量:8
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