强干扰环境下窄带信号检测滤波优化算法  

Strong Interference Environment Narrowband Signal Detection Filter Optimization Algorithm

作　　者：朱文忠[1,2] 蒋华龙[1] 周述文[1] 

机构地区：[1]四川理工学院计算机学院,四川自贡643000 [2]江河流域生态环境的集成感知与应用院士(专家)工作站,四川自贡643000

出　　处：《微电子学与计算机》2015年第12期151-154,158,共5页Microelectronics & Computer

基　　金：江河流域生态环境的集成感知与应用院士(专家)工作站(YSGZZ2015);企业信息化与物联网测控技术四川省重点实验室(2014WYJ06;2015WZJ01);四川省智慧旅游研究基地(ZHZ14-02;ZHZ14-03)

摘　　要：提出一种新的强干扰环境下窄带信号检测滤波算法,通过检测滤波算法存在的问题,建立强干扰环境下的信号模型,对信号序列进行快速傅里叶变换及进行频域处理,对经频域处理后的信号再此进行快速傅里叶变换,获取频域中最强信号的幅度,并进行能量归一化处理和逆向频移,得到滤波后的原信号,实现强干扰环境下窄带信号的检测滤波.仿真实验结果表明,采用所提方法进行窄带信号检测得到的信号质量好,效率高.A new narrowband signal detection algorithm is put forward.The strong interference environment problems are solved by examining filtering algorithm,and strong interference environment signal model is set up.Fast Fourier transform of signal sequence and the frequency domain processing are finished.After the signal received the frequency domain processing,it experenced the fast Fourier transform,and the strongest signal amplitude was obtained.After filtering of the original signal,narrow-band signal was realized under strong interference environment detection filter.Simulation experimental results show that the proposed method is adopted to improve the narrowband signal detection of signals are of good quality and high efficiency.

关 键 词：强干扰环境下 窄带信号 检测滤波 

分 类 号：TN911[电子电信—通信与信息系统]