自适应陷波器级联神经网络抗干扰算法

Journal of Xidian University(Natural Science)(2017)

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Abstract
针对卫星导航信号容易受到窄带干扰影响而降低导航性能的问题,提出了一种基于神经网络的全球定位系统接收机抗干扰方法.该方法通过自适应陷波器与反向传播神经网络级联,利用二阶格型无限脉冲响应自适应陷波器滤除带外干扰,再结合反向传播神经网络预测器来估计并消除干扰.从捕获卫星数、信噪比提升值和迭代次数对算法性能进行仿真比较,结果表明,文中方法可有效抑制窄带干扰,并且有更强的抗窄带能力、更快的收敛速度.
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Key words
neural networks,adaptive notch filter(ANF),jamming,interference suppression,global positioning system
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