| 随机断续高频雷达波形设计和处理 |
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| 引用本文： | 位寅生,刘永坦.随机断续高频雷达波形设计和处理[J].电子学报,2002,30(3):437-440. |
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| 作者姓名： | 位寅生 刘永坦 |
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| 作者单位： | 哈尔滨工业大学电子工程技术研究所,黑龙江哈尔滨 150001 |
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| 摘 要： | 本文综合分析了几种典型高频地波超视距雷达波形的特点,针对这些波形在高频段电磁干扰严重条件下可用连续频带较窄的问题,提出了一种依据外部电磁环境监测结果来截断干扰频段的波形.这种波形能够有效地利用不连续频段,从而提高雷达的有效带宽和抗干扰能力.针对波形频谱截断后引起的距离旁瓣过高问题,本文采用一种改进的自适应目标回波重建算法来处理,达到较好的结果.
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| 关 键 词： | 波形设计 旁瓣抑制 频谱截断 信号处理 |
| 文章编号： | 0372-2112(2002)03-0437-04 |
| 收稿时间： | 2001-01-31 |
Random Interrupted HF Radar Waveform Designing and Processing |
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| WEI Yin sheng,LIU Yong tan.Random Interrupted HF Radar Waveform Designing and Processing[J].Acta Electronica Sinica,2002,30(3):437-440. |
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| Authors: | WEI Yin sheng LIU Yong tan |
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| Affiliation: | Research Institute of Electronic Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China |
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| Abstract: | In this paper the characteristic of several typical HF radar waveforms are synthetically analyzed and compared.A new waveform with interrupted spectra is presented to improve the narrow continuous bandwidth usable in heavily congested electromagnetic environments.By cutting off the interference spectrum based on the result of the electromagnetic environment surveying system,HF radar could make use of the fractional silent spectra.This would greatly improve the radar's anti-jamming ability and effective bandwidth.Moreover,an improved adaptive targets echo reconstruction algorithm is used.Simulation results show that it could successively suppress the high sidelobe with this waveform. |
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| Keywords: | waveform design sidelobe suppression interrupted spectra signal processing |
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