| 基于TLS-ESPRIT算法的OTHR瞬态干扰抑制 |
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| 引用本文： | 甄红飞,龚耀寰,刘涛.基于TLS-ESPRIT算法的OTHR瞬态干扰抑制[J].雷达科学与技术,2011,9(4):341-346. |
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| 作者姓名： | 甄红飞 龚耀寰 刘涛 |
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| 作者单位： | 中国人民解放军68215部队;电子科技大学电子工程学院; |
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| 摘 要： | 天波超视距雷达(OTHR)工作于高频波段,电波传播环境复杂,极易受到流星余迹回波等瞬态干扰的影响。目前提出的针对瞬态干扰的抑制方法大多需要预先抑制海、地杂波,复杂度较高,实用性不强。提出了将含瞬态干扰回波数据的频域视为复合正弦信号,使用高分辨算法(TLS-ESPRIT算法等)可以检测出干扰发生位置,再去掉被干扰数据段,并通过加权线性预测恢复有效数据,达到抑制干扰的目的。该方法的优点是干扰检测前无需预先抑制海杂波,实用性较强。仿真结果表明该方法的有效性。
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| 关 键 词： | 天波超视距雷达 瞬态干扰 干扰抑制 TLS-ESPRIT算法 |
Research on Impulsive Interference Suppression in OTHR Based on TLS-ESPRIT Algorithm |
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| ZHEN Hong-fei,GONG Yao-huan,LIU Tao.Research on Impulsive Interference Suppression in OTHR Based on TLS-ESPRIT Algorithm[J].Radar Science and Technology,2011,9(4):341-346. |
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| Authors: | ZHEN Hong-fei GONG Yao-huan LIU Tao |
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| Affiliation: | ZHEN Hong-fei1,2,GONG Yao-huan2,LIU Tao2(1.Unit 68215 of PLA,Lanzhou 810800,China,2.School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | High-frequency(HF) sky-wave over-the-horizon radar(OTHR) operates in complex propagation environment and is highly sensitive to strong impulsive interference such as meteor trail interference.Present methods for suppressing impulsive interference have disadvantages of high computation cost and low feasibility,and most of them rely on clutter suppression.This paper proposes a novel method.Firstly,regarding phase spectrum of echo data as complex sinusoid signal,the data segment contaminated by impulsive inter... |
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| Keywords: | over-the-horizon radar(OTHR) impulsive interference interference suppression TLS-ESPRIT algorithm |
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