| DT-OFDM在Ka频段卫星通信中的应用 |
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| 引用本文： | 李云云,达新宇.DT-OFDM在Ka频段卫星通信中的应用[J].上海航天,2006,23(1):57-60. |
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| 作者姓名： | 李云云 达新宇 |
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| 作者单位： | 空军工程大学,电讯工程学院,陕西,西安,710077 |
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| 基金项目： | 武器装备预先研究基金项目(51421010103jb3202) |
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| 摘 要： | 为提高Ka频段卫星通信的性能,采用信道编码技术提出了一种差分Turbo码正交频分复用(DT-OFDM)方案,给出了DT-OFDM系统模型的组成和差分软检测方法。仿真试验结果表明,不同子载波数的DT-OFDM误码率均低于传统的卷积编码正交频分复用(CC-OFDM)和网格编码正交频分复用(TCM-OFDM)。
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| 关 键 词： | 卫星通信 Ka频段 Turbo码 正交频分复用 |
| 文章编号： | 1006-1630（2006）01-0057-04 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-06-30 |
Application of DT-OFDM for Satellite Communications in Ka Band |
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| LI Yun-yun,DA Xin-yu.Application of DT-OFDM for Satellite Communications in Ka Band[J].Aerospace Shanghai,2006,23(1):57-60. |
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| Authors: | LI Yun-yun DA Xin-yu |
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| Abstract: | To improve the performance for satellite communication in Ka band,a scheme of differential Turbo coded orthogonal frequency division multiplexing(DT-OFDM) was put forward using technology of channel coding in this paper.The composition of DT-OFDM system model and method of differential soft detection were also given.The simulation results showed that the bit error rate of DT-OFDM within various sub-carrier numbers were better than convolutional coded orthogonal frequency division multiplexing(CC-OFDM) and Turbo coding modulation orthogonal frequency division multiplexing(DT-OFDM). |
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| Keywords: | Satellite communication Ka band Turbo code Orthogonal frequency division multiplexing |
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