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几何匹配滤波器及其对间歇采样转发干扰的响应特性

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针对间歇采样转发干扰问题,基于几何代数工具重新审视匹配滤波过程,以投影角余角作为滤波器输出构造了几何匹配滤波器并分析了其对间歇采样直接转发干扰的响应特性.仿真中利用几何匹配滤波器输出对干扰采样占空比进行了估计,为下一步抑制干扰提供了先验知识;通过对比不同参数下几何匹配滤波器与传统匹配滤波器对目标与干扰的输出,说明了几何匹配滤波器对强干扰的优良适应能力以及给目标检测带来的增益,为解决雷达对抗切片转发干扰提供了一种新的几何视角.
Geometric Matched Filter and Its Response to Interrupted Sampling Repeater Jamming
Aiming at the counter of intermittent sampling repeater interference,the matched filtering process was re-examined based on the tools of geometric algebra.Furthermore,the geometric matched filter is proposed with the complementary angle of the pro-jection angle as its output.Then,the geometric matched filter's response characteristics to intermittent sampling repeater interfer-ence are analyzed.The geometric matched filter is applied to estimate the duty of the interference,which provides a priori knowl-edge for the suppression of the interference Meanwhile,several simulations confirm that the geometric matched filter overperforms in the adaptability to the background of strong interference and the target detection.The presented results provide a new geometric perspective for the counter of slicing forward jamming.

interrupted sampling repeater jamminggeometric algebrageometric matched filterparameter estimationinterfer-ence suppression

梁璞、汪敏、蒋彦雯、范红旗、付强

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中国人民解放军96747 部队,青海西宁 810007

国防科技大学电子科学学院,湖南长沙 410073

间歇采样转发干扰 几何代数 几何匹配滤波器 参数估计 干扰抑制

2024

现代雷达
南京电子技术研究所

现代雷达

CSTPCD北大核心
影响因子:0.568
ISSN:1004-7859
年,卷(期):2024.46(1)
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