| 高频地波雷达电离层杂波抑制研究 |
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| 引用本文： | 黄坚,钟志峰.高频地波雷达电离层杂波抑制研究[J].武汉大学学报(信息科学版),2011(2):248-251. |
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| 作者姓名： | 黄坚 钟志峰 |
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| 作者单位： | 江西财经大学软件与通信工程学院;湖北大学物理学与电子技术学院; |
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| 基金项目： | 江西省教育厅青年科学基金资助项目(GJJ09554,GJJ09286,GJJ09553) |
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| 摘 要： | 基于高频地波雷达中的电离层杂波特性,提出了一种基于时频分析结合自适应旁瓣对消来抑制电离层杂波的方法。该方法首先通过时频分析合理地选择扫频脉冲时段和多普勒频率区间,然后对选定的时频域区间利用特征分解法分别进行阵元-脉冲域和阵元-多普勒域抑制电离层杂波,最后利用阵列结构特点采用分段处理的自适应旁瓣对消继续对电离层杂波进行抑制。实测数据表明,该处理方法对电离层杂波的抑制效果很好。
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| 关 键 词： | 高频地波雷达 电离层杂波 时频分析 自适应旁瓣对消 |
Ionospheric Clutter Suppression in High Frequency Ground Wave Rader |
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| HUANG Jian ZHONG Zhifeng.Ionospheric Clutter Suppression in High Frequency Ground Wave Rader[J].Geomatics and Information Science of Wuhan University,2011(2):248-251. |
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| Authors: | HUANG Jian ZHONG Zhifeng |
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| Institution: | HUANG Jian1 ZHONG Zhifeng2 (1 School of Software and Communication Engineering,Jiangxi University of Finance and Economics,169 East Shuanggang Street,Nanchang 330013,China)(2 School of Physics and Electronic Technology,Hubei University,368 Youyi Road,Wuhan 430062,China) |
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| Abstract: | A method using time-frequency analysis and dummy frequency agility to suppress ionospheric clutter based on ionospheric clutter characteristics in high frequency ground wave radar(HFGWR) is proposed.Making use of eigen decomposition cooperating in the element-pulse domain and in the element-doppler domain to suppress ionospheric clutter by analyzing the time-frequency images where the swept pulse section and the Doppler section were exactly determined in the method.Then,the ionospheric clutter suppressed by... |
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| Keywords: | high frequency ground wave radar ionospheric clutter time-frequency analysis adaptive sidelobe cancellation |
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