Nakagami衰落下无人机数据链抗干扰性能
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Anti jamming Capability of UAV Data link Under Nakagami Fading
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    摘要:

    针对信道衰落及 人为干扰共存的电波传播环境,给出了Nakagami衰落下无人机(Unmanned aerial vehicles , UAV)数据链系统的接收信号理论模型。针对单音及连续噪音干扰样式,推导出了接收端 瞬时干信比、瞬时信噪比和瞬时信干噪比的概率密度函数表达式,并据此推导获得了无人机 数据链系统的中断概率和平均错误概率性能表达式。数值仿真结果表明,本文理论分析结果 与仿真值非常吻合,当干扰功率大于噪声功率时,连续噪音的干扰效果优于单音信号3~ 5 dB,本文研究可为无人机数据链干扰及抗干扰技术的研究提供理论基础。

    Abstract:

    For the wireless propagation environment with channel fading and jamming, a received signal theor etical model of unmanned aerial vehicles (UAV) data link system under Nakagami f ading channel is proposed. Then, for two jamming types which is single tone jamm ing and continuous noise jamming, the probability density function (PDF) expressions of instantaneous jamming to signal ratio (JSR), signal to noise ratio (SNR) and signal to interference plus noise ratio (SINR) are derived separately. On this b asis, the average error probability, as well as the outrage probability, is also derived. Numerical simulations verify the analyzed results and showed tha t the continuous noise jamming outperforms the single tone jamming about 3—5 dB, which are helpful for studying on jamming and anti jamming technologies of UAV data link.

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戴秀超;朱秋明;吕卫华;徐大专;廖志忠. Nakagami衰落下无人机数据链抗干扰性能[J].数据采集与处理,2016,31(3):584-591

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  • 在线发布日期: 2016-06-24