简化软件DVB-T2信道解码器的软demapper设计

S. D. You
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引用次数: 0

摘要

本文在传统一维demapper的基础上,提出了一种用于DVB-T2(第二代数字视频广播-地面)接收机的简化软demapper。仿真结果表明,简化后的一维demapper在各种信道下都有1 ~ 2db的衰减。与二维软demapper相比,简化的一维方法将复杂性降低了十倍以上,如果接收器要在软件中实现,则是一种可能的替代方案。
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Simplifying soft demapper design for software DVB-T2 channel decoder
This paper proposes a simplified soft demapper for DVB-T2 (Second Generation Digital Video Broadcasting-Terrestrial) receiver based on conventional 1-D demapper. Simulation results show that the simplified 1-D demapper has 1 to 2 dB degradation for various channels. When compared with the 2-D soft demapper, the simplified 1-D approach offers a complexity reduction by more than ten-fold, and is a possible alternative if the receiver is to be implemented in software.
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