Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar

Abstract The wingbeat frequency of insect migrant is regarded potentially valuable for species identification and has long drawn widespread attention in radar entomology. Principally, the radar echo signal can be used to extract wingbeat information, because both the signal amplitude and phase could...

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Autores principales:	Rui Wang, Cheng Hu, Xiaowei Fu, Teng Long, Tao Zeng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/48e0150e4bd64833b5d5c9c4c494d26a
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spelling	oai:doaj.org-article:48e0150e4bd64833b5d5c9c4c494d26a2021-12-02T12:32:19ZMicro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar10.1038/s41598-017-01616-42045-2322https://doaj.org/article/48e0150e4bd64833b5d5c9c4c494d26a2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01616-4https://doaj.org/toc/2045-2322Abstract The wingbeat frequency of insect migrant is regarded potentially valuable for species identification and has long drawn widespread attention in radar entomology. Principally, the radar echo signal can be used to extract wingbeat information, because both the signal amplitude and phase could be modulated by wing-beating. With respect to existing entomological radars, signal amplitude modulation has been used for wingbeat frequency measurement of large insects for many years, but the wingbeat frequency measurement of small insects remains a challenge. In our research, W-band and S-band coherent radars are used to measure the insect wingbeat frequency. The results show that the wingbeat-induced amplitude modulation of W-band radar is more intense than that of the S-band radar and the W-band radar could measure the wingbeat frequency of smaller insects. In addition, it is validated for the first time that the signal phase could also be used to measure the insect wingbeat frequency based on micro-Doppler effect. However, whether the wingbeat frequency measurement is based on the amplitude or phase modulation, it is found that the W-band coherent radar has better performance on both the measurement precision and the measurable minimum size of the insect.Rui WangCheng HuXiaowei FuTeng LongTao ZengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rui Wang Cheng Hu Xiaowei Fu Teng Long Tao Zeng Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
description	Abstract The wingbeat frequency of insect migrant is regarded potentially valuable for species identification and has long drawn widespread attention in radar entomology. Principally, the radar echo signal can be used to extract wingbeat information, because both the signal amplitude and phase could be modulated by wing-beating. With respect to existing entomological radars, signal amplitude modulation has been used for wingbeat frequency measurement of large insects for many years, but the wingbeat frequency measurement of small insects remains a challenge. In our research, W-band and S-band coherent radars are used to measure the insect wingbeat frequency. The results show that the wingbeat-induced amplitude modulation of W-band radar is more intense than that of the S-band radar and the W-band radar could measure the wingbeat frequency of smaller insects. In addition, it is validated for the first time that the signal phase could also be used to measure the insect wingbeat frequency based on micro-Doppler effect. However, whether the wingbeat frequency measurement is based on the amplitude or phase modulation, it is found that the W-band coherent radar has better performance on both the measurement precision and the measurable minimum size of the insect.
format	article
author	Rui Wang Cheng Hu Xiaowei Fu Teng Long Tao Zeng
author_facet	Rui Wang Cheng Hu Xiaowei Fu Teng Long Tao Zeng
author_sort	Rui Wang
title	Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
title_short	Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
title_full	Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
title_fullStr	Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
title_full_unstemmed	Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar
title_sort	micro-doppler measurement of insect wing-beat frequencies with w-band coherent radar
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/48e0150e4bd64833b5d5c9c4c494d26a
work_keys_str_mv	AT ruiwang microdopplermeasurementofinsectwingbeatfrequencieswithwbandcoherentradar AT chenghu microdopplermeasurementofinsectwingbeatfrequencieswithwbandcoherentradar AT xiaoweifu microdopplermeasurementofinsectwingbeatfrequencieswithwbandcoherentradar AT tenglong microdopplermeasurementofinsectwingbeatfrequencieswithwbandcoherentradar AT taozeng microdopplermeasurementofinsectwingbeatfrequencieswithwbandcoherentradar
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Micro-Doppler measurement of insect wing-beat frequencies with W-band coherent radar

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