Nakagami衰落信道下噪声跟踪干扰检测性能分析

发布时间：2018-02-22 02:27

  本文关键词： 跳频通信 噪声跟踪干扰 Nakagami衰落信道 协作频谱感知 干扰检测　出处：《电波科学学报》2014年04期 　论文类型：期刊论文

【摘要】：针对慢跳频通信中噪声跟踪干扰的检测问题,提出了一种新的噪声跟踪干扰检测算法.该检测算法应用认知无线电中协作频谱感知方法,分析了接收信号的条件概率密度函数,研究了加性高斯白噪声信道下单跳信号存在干扰的检测性能.在此基础上,推导了Nakagami衰落信道下单跳信号存在干扰的检测概率和虚警概率,通过对检测概率和虚警概率中的多重积分进行化简,得到了检测概率和虚警概率的级数表达式.单跳信号检测后,把检测结果上报到融合中心,应用协作频谱感知中的"k out of n"准则分析了噪声跟踪干扰的检测性能.仿真结果验证了理论分析的正确性.
[Abstract]:A new noise tracking interference detection algorithm is proposed to detect noise tracking interference in slow frequency hopping communication. The conditional probability density function of received signals is analyzed by using cooperative spectrum sensing method in cognitive radio. The detection performance of order hopping signal in additive Gao Si white noise channel is studied. Based on this, the detection probability and false alarm probability of order hopping signal in Nakagami fading channel are derived. By simplifying the multiple integrals in detection probability and false alarm probability, the series expressions of detection probability and false alarm probability are obtained. After single-hop signal detection, the detection results are reported to the fusion center. The detection performance of noise tracking interference is analyzed by using the "k out of n" criterion in cooperative spectrum sensing. The simulation results verify the correctness of the theoretical analysis.
【作者单位】： 军械工程学院无人机工程系;
【分类号】：TN914.41
，

本文编号：1523425