基于空間多波束的高頻地波雷達電離層雜波抑制算法

姚迪; 張鑫; 楊強; 鄧維波; 陳秋實

doi:10.11999/JEIT170477

基于空間多波束的高頻地波雷達電離層雜波抑制算法

doi: 10.11999/JEIT170477

基金項目:

國家自然科學(xué)基金(61171182, 61701140, 61171180, 61571159)，中央高?；究蒲袠I(yè)務(wù)費專項資金(HIT.MKSTISP. 201613, HIT.MKSTISP.201626)

計量
- 文章訪問數(shù): 1472
- HTML全文瀏覽量: 148
- PDF下載量: 249
- 被引次數(shù): 0
出版歷程
- 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: 在小孔徑高頻地波超視距雷達系統(tǒng)中，普遍存在一種覆蓋一定距離單元，多普勒單元以及全部角度單元的電離層雜波。為抑制該雜波并且提高被其淹沒目標(biāo)的檢測概率，該文提出一種基于空間多波束的電離層雜波抑制算法。該方法充分利用寬波束時波束間具有很強相關(guān)性的特點，以及實際情況下雜波覆蓋的距離單元數(shù)或多普勒單元數(shù)遠遠多于目標(biāo)所覆蓋的單元數(shù)的特點來實現(xiàn)雜波信息的估計與抑制。仿真實驗與實測數(shù)據(jù)結(jié)果均證明該方法可以有效地抑制電離層雜波，并顯著地提高被淹沒目標(biāo)的檢測概率。
- 高頻地波超視距雷達 /
- 寬波束 /
- 雜波抑制 /
- 被淹沒目標(biāo)
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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