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一、引言本文提出一种新的自适应抑制雷达杂波干扰的方法,它以杂波频谱的自回归估计为基础。这种技术应用一个白化滤波器和一个与畸变的接收信号相匹配的滤波器,如图1所示。假设干扰杂波可以以自回归随机过程为模型,则滤波器在杂波频谱的参量估计的基础上实现实时变化。自适应滤波器的功能框图如图2所示。以前关于自适应杂波滤波器的工作利用了如图3所示的抽头延迟线反馈环路的方法.
I. INTRODUCTION A new adaptive jamming method for radar jamming is proposed in this paper. It is based on the autoregressive estimation of the clutter spectrum. This technique uses a whitening filter and a distorted received signal to match the filter, as shown in Figure 1. Assuming that interference clutter can be modeled as an autoregressive stochastic process, the filter real-time changes based on the parametric estimation of the clutter spectrum. The functional block diagram of the adaptive filter is shown in Figure 2. Previous work on adaptive clutter filters utilized the tapped delay line feedback loop shown in Figure 3.