| 基于Turbo码的自适应Ka频段抗雨衰控制 |
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| 引用本文： | 王艳岭,张健全,王国波. 基于Turbo码的自适应Ka频段抗雨衰控制[J]. 无线电工程, 2012, 42(11): 14-16 |
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| 作者姓名： | 王艳岭 张健全 王国波 |
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| 作者单位： | 中国人民解放军93498部队,河北石家庄,050071 |
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| 基金项目： | 国家自然科学基金项目（60802053） |
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| 摘 要： | 为了减小雨衰对Ka频段的影响,通过分析Ka频段雨衰和信号频率的关系以及Turbo码在不同天气下的性能,提出了一种自适应的抗雨衰控制方法,并建立了相应的系统模型。根据不同的天气状况自适应地提高码重和控制信号频率,提高了系统在中高信噪比时的抗雨衰能力。仿真结果表明,当误码率为10-4～10-5时,其性能可提高3 dB左右。
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| 关 键 词： | Ka频段 雨衰 Turbo码 码重分布 |
Adaptive Rain Fade Control in Ka Band Based on Turbo Code |
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| WANG Yan-ling,ZHANG Jian-quan,WANG Guo-bo. Adaptive Rain Fade Control in Ka Band Based on Turbo Code[J]. Radio Engineering of China, 2012, 42(11): 14-16 |
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| Authors: | WANG Yan-ling ZHANG Jian-quan WANG Guo-bo |
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| Affiliation: | (Unit 93498,PLA,Shijiazhuang Hebei 050071,China) |
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| Abstract: | An adaptive rain fade control countermeasure approach and its system model are proposed to reduce rain attenuation in Ka band.The approach can improve system resisting rain loss ability by increasing code weight and controlling signal frequency adaptively according to different weather conditions.Simulation results show that the approach can provide 3dB gain in case of a BER of 10-4~10-5. |
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| Keywords: | Ka band rain attenuation Turbo codes distribution of code weight |
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