基于空间多波束的高频地波雷达电离层杂波抑制算法

姚迪; 张鑫; 杨强; 邓维波; 陈秋实

doi:10.11999/JEIT170477

基于空间多波束的高频地波雷达电离层杂波抑制算法

doi: 10.11999/JEIT170477

基金项目:

国家自然科学基金(61171182, 61701140, 61171180, 61571159)，中央高校基本科研业务费专项资金(HIT.MKSTISP. 201613, HIT.MKSTISP.201626)

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- 文章访问数: 1456
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-17
- 修回日期: 2017-10-12
- 刊出日期: 2017-12-19

Ionospheric Clutter Suppression Algorithm Based on Space Multibeam for High Frequency Surface Wave Radar

(School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China)

Funds:

The National Natural Science Foundation of China (61171182, 61701140, 61171180, 61571159), The Fundamental Research Funds for the Central Universities (HIT. MKSTISP.201613, HIT.MKSTISP.201626)

摘要

摘要: 在小孔径高频地波超视距雷达系统中，普遍存在一种覆盖一定距离单元，多普勒单元以及全部角度单元的电离层杂波。为抑制该杂波并且提高被其淹没目标的检测概率，该文提出一种基于空间多波束的电离层杂波抑制算法。该方法充分利用宽波束时波束间具有很强相关性的特点，以及实际情况下杂波覆盖的距离单元数或多普勒单元数远远多于目标所覆盖的单元数的特点来实现杂波信息的估计与抑制。仿真实验与实测数据结果均证明该方法可以有效地抑制电离层杂波，并显著地提高被淹没目标的检测概率。
- 高频地波超视距雷达 /
- 宽波束 /
- 杂波抑制 /
- 被淹没目标
Abstract: In the small-aperture high-frequency surface-wave over-the-horizon radar system, the ionospheric clutter that covers a certain range bins, the Doppler bins and all the angle bins is generally existent. To restrain the clutter and ensure the submerged target easy detect, this paper presents an ionospheric clutter suppression algorithm based on spatial multi-beam. This method makes full use of the characteristics of the strong correlation between the beams in the wide beam and the characteristics of the number of range bins or Doppler bins covered by the clutter is far more than the number of bins covered by the target to achieve the clutter information estimation and suppression. The results of the simulation experiment and the measured data show that the method can effectively suppress the ionospheric clutter, and significantly improve the detection probability of the submerged target.
- High-frequency surface-wave over-the-horizon radar /
- Wide spatial beam /
- Clutter suppression /
- Submerged target

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参考文献(19)

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