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Shadow effect for small insect detection by W-Band pulsed Radar

Hernández Rosas, Miguel [autor] | Espinosa Flores Verdad, Guillermo [autor] | Peregrina Barreto, Hayde [autora] | Liedo Fernández, Pablo [autor] | Altamirano Robles, Leopoldo [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Ceratitis capitata | Moscas de la fruta | Radar | Sensores remotos | EntomologíaTema(s) en inglés: Ceratitis capitata | Fruit flies | Radar | Remote sensing | EntomologyNota de acceso: Acceso en línea sin restricciones En: Sensors. Volumen 23, numero 22 (November 2023), páginas 1-13. --ISSN: 1424-8220Número de sistema: 64363Resumen:
Inglés

In radar entomology, one primary challenge is detecting small species (smaller than 5 cm) since these tiny insects reflect radiation that can be poorly observable and, therefore, difficult to interpret. After a literature search on radar entomology, this research found few works where it has been possible to sense insects with dimensions smaller than 5 cm using radars. This paper describes different methodologies to detect Mediterranean fruit flies with 5–6 mm sizes using a pulsed W-band radar and presents the experimental results that validate the procedures. The article’s main contribution is the successful detection of Mediterranean fruit flies employing the shadow effect on the backscattered radar signal, achieving an 11% difference in received power when flies are present. So far, according to the information available and the literature search, this work is the first to detect small insects less than 1 cm long using a pulsed radar in W-Band. The results show that the proposed shadow effect is a viable alternative to the current sensors used in smart traps, as it allows not only detection but also counting the number of insects in the trap.

Recurso en línea: https://doi.org/10.3390/s23229169
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Acceso en línea sin restricciones

In radar entomology, one primary challenge is detecting small species (smaller than 5 cm) since these tiny insects reflect radiation that can be poorly observable and, therefore, difficult to interpret. After a literature search on radar entomology, this research found few works where it has been possible to sense insects with dimensions smaller than 5 cm using radars. This paper describes different methodologies to detect Mediterranean fruit flies with 5–6 mm sizes using a pulsed W-band radar and presents the experimental results that validate the procedures. The article’s main contribution is the successful detection of Mediterranean fruit flies employing the shadow effect on the backscattered radar signal, achieving an 11% difference in received power when flies are present. So far, according to the information available and the literature search, this work is the first to detect small insects less than 1 cm long using a pulsed radar in W-Band. The results show that the proposed shadow effect is a viable alternative to the current sensors used in smart traps, as it allows not only detection but also counting the number of insects in the trap. eng

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