| 无人机复杂电磁环境频谱特征反演测量 |
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| 引用本文： | 郭淑霞,吴义春,王江宇,高培伟.无人机复杂电磁环境频谱特征反演测量[J].宇航计测技术,2020,40(5):83-87. |
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| 作者姓名： | 郭淑霞 吴义春 王江宇 高培伟 |
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| 作者单位： | 1.西北工业大学无人机特种技术重点实验室，陕西西安 710065；
2.西北工业大学自动化学院，陕西西安 710065 |
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| 基金项目： | 上海航天科技创新基金项目（SAST2019-109）；预研项目（41409040101）；民机专项（MU-2016-F-18）联合资助。 |
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| 摘 要： | 针对复杂电磁环境对无人机用频设备的干扰和威胁，本文提出了一种复杂电磁环境信号频谱特征的反演方法。该方法基于小波变换原理对无人机典型用频频段电磁信号进行变换处理，对其频谱特征进行奇异性检测，结合信号降噪处理等技术去除频谱伪奇异点对接收信号频谱特征进行反演测量，并对该方法进行了仿真验证。仿真结果表明该方法反演复杂电磁环境频谱特征满足无人机数据链抗干扰设计要求。
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| 关 键 词： | 复杂电磁环境 小波变换 频谱特征反演 |
Inversion Measurement of Spectrum Characteristics of UAV Complex Electromagnetic Environment |
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| GUO Shu-xia,WU Yi-chun,WANG Jiang-yu,GAO Pei-wei.Inversion Measurement of Spectrum Characteristics of UAV Complex Electromagnetic Environment[J].Journal of Astronautic Metrology and Measurement,2020,40(5):83-87. |
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| Authors: | GUO Shu-xia WU Yi-chun WANG Jiang-yu GAO Pei-wei |
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| Institution: | 1.Science and Technology on UAV Laboratory，Xi’an 710065,China;
2.Northwestern Polytechnical University，Xi’an 710065，China |
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| Abstract: | Aiming at the interference and threat of complex electromagnetic environment to frequency equipment of UAV，this paper presents an inversion method of spectrum characteristics of complex electromagnetic environment signal.Based on the principle of wavelet transform，this method transforms the typical frequency band electromagnetic signal of UAV，detects the singularity of its spectrum characteristics，and retrieves the spectrum characteristics of the received signal by removing the pseudo-singularity of the spectrum with the signal de-noising processing，and verifies the method by simulation.The simulation results show that the method can retrieve the spectrum characteristics of complex electromagnetic environment to meet the anti-interference of UAV data link design. |
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| Keywords: | Complex electromagnetic environment Wavelet transform Spectrum inversion |
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