{"id":10032,"date":"2020-07-21T09:16:44","date_gmt":"2020-07-21T07:16:44","guid":{"rendered":"https:\/\/www.yellowscan.com\/knowledge\/por-que-el-lidar-tiene-una-longitud-de-onda-especifica-parte-2\/"},"modified":"2025-05-07T11:28:30","modified_gmt":"2025-05-07T09:28:30","slug":"why-does-lidar-have-a-specific-wavelength-2","status":"publish","type":"ys_knowledge","link":"https:\/\/www.yellowscan.com\/es\/knowledge\/why-does-lidar-have-a-specific-wavelength-2\/","title":{"rendered":"\u00bfPor qu\u00e9 el LiDAR usa longitudes de onda de 903 y 905 nm?"},"content":{"rendered":"\t\t
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Otra especificidad de la longitud de onda del LiDAR: la absorci\u00f3n atmosf\u00e9rica.<\/h3>\n

Un rayo de sol emite hasta 150K lux. Es como recibir la luz de 15.000 velas al mismo tiempo.<\/p>\n

Una que sea directa o reflejada, puede ser malinterpretada por el LiDAR y ser considerada como un retorno l\u00e1ser. Las mol\u00e9culas de agua de la atm\u00f3sfera absorben buena parte de la radiaci\u00f3n solar, reduciendo as\u00ed las posibilidades de que el rayo solar llegue al sensor LiDAR.<\/p>\n

Nuestros sistemas LiDAR<\/strong> utilizan longitudes de onda<\/strong> especiales: 903 nm y 905 nm. \u00bfPor qu\u00e9?<\/p>\n

La luz que nos llega del sol atraviesa la atm\u00f3sfera, que absorbe parte de las radiaciones. El agua, presente constantemente en el aire, absorbe estas radiaciones. Se observa que una parte muy peque\u00f1a de la radiaci\u00f3n solar de 905 nm est\u00e1 presente en la atm\u00f3sfera porque es absorbida en su mayor parte por el vapor de agua.<\/p>\n

Adem\u00e1s, se coloca un filtro de paso de banda estrecha delante del sensor LiDAR. De este modo, s\u00f3lo una longitud de onda seleccionada con pocos nan\u00f3metros alrededor de la longitud de onda central del filtro puede atravesarlo. En otras palabras, filtra toda la luz solar que pueda generar datos err\u00f3neos (es decir, ruido). Esto optimiza el hecho de que la luz captada y registrada por el LiDAR corresponde a la luz que \u00e9l mismo ha generado.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Fuentes : NASA (original); SVG de Mysid<\/a>. – Vectorizado por User:Mysid<\/a> en Inkscape, imagen original de la NASA de File:Atmospheric electromagnetic<\/a><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Como informaci\u00f3n complementaria, puede leer
\n c\u00f3mo influye la eficiencia del detector en la longitud de onda LiDAR.<\/strong>
\n<\/a><\/div>\n<\/p>\n

N.B. Autora L\u00e9a Moussi. El contenido de este art\u00edculo est\u00e1 protegido por derechos de autor.<\/em><\/p><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Descubra nuestras soluciones LiDAR<\/h4>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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