CIOP   05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
artículos
Título:
Leds used as spectral selective light detectors in remote sensing techniques
Autor/es:
C. WEBER; J. O. TOCHO; E. J. RODRÍGUEZ
Revista:
Journal of Physics: Conference Series (JPCS)
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 2010
ISSN:
1742-6588
Resumen:
Remote sensing has been commonly considered as an effective technique in
developing precision agriculture tools. Ground based and satellite spectral sensors have wide
uses to retrieve remotely quantitative biophysical and biochemical characteristics of vegetation
canopies as well as vegetation ground cover. Usually in-field remote sensing technologies use
either a combination of interferential filters and photodiodes or different compact
spectrometers to separate the spectral regions of interest.
In this paper we present a new development of a sensor with LEDs used as spectrally selective
photodetectors. Its performance was compared with a photodiode-filter sensor used in
agronomic applications. Subsequent measurements of weed cover degree were performed and
compared with other methodologies. Results show that the new LEDs based sensor has similar
features that conventional ones to determining the weed soil cover degree; while LEDs based
sensor has comparative advantages related its very low manufacturing cost and its robustness
compatible with agricultural field applications.
developing precision agriculture tools. Ground based and satellite spectral sensors have wide
uses to retrieve remotely quantitative biophysical and biochemical characteristics of vegetation
canopies as well as vegetation ground cover. Usually in-field remote sensing technologies use
either a combination of interferential filters and photodiodes or different compact
spectrometers to separate the spectral regions of interest.
In this paper we present a new development of a sensor with LEDs used as spectrally selective
photodetectors. Its performance was compared with a photodiode-filter sensor used in
agronomic applications. Subsequent measurements of weed cover degree were performed and
compared with other methodologies. Results show that the new LEDs based sensor has similar
features that conventional ones to determining the weed soil cover degree; while LEDs based
sensor has comparative advantages related its very low manufacturing cost and its robustness
compatible with agricultural field applications.