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In astrophysics and planetary science, spectral slope, also called spectral gradient, is a measure of dependence of the reflectance on the wavelength. In digital signal processing, it is a measure of how quickly the spectrum of an audio sound tails off towards the high frequencies, calculated using a linear regression.

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  • Gradient spectral (fr)
  • Spectral slope (en)
  • Gradiente espectral (pt)
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  • En astrophysique ainsi qu'en planétologie, le gradient spectral est la mesure de corrélation de la réflectance sur la longueur d'onde. En traitement numérique du signal, il s'agit d'une mesure de la vitesse à laquelle la queue d'un son audio se dissipe à l'approche des hautes fréquences, établie à l'aide d'une régression linéaire. (fr)
  • In astrophysics and planetary science, spectral slope, also called spectral gradient, is a measure of dependence of the reflectance on the wavelength. In digital signal processing, it is a measure of how quickly the spectrum of an audio sound tails off towards the high frequencies, calculated using a linear regression. (en)
  • Em astrofísica e planetologia, gradiente espectral é a medida de dependência da refletância no comprimento de onda. Em processamento digital de sinais, é a medida de quão rapidamente o espectro de um som vai em direção a frequências mais altas, calculado usando regressão linear. (pt)
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  • En astrophysique ainsi qu'en planétologie, le gradient spectral est la mesure de corrélation de la réflectance sur la longueur d'onde. En traitement numérique du signal, il s'agit d'une mesure de la vitesse à laquelle la queue d'un son audio se dissipe à l'approche des hautes fréquences, établie à l'aide d'une régression linéaire. (fr)
  • In astrophysics and planetary science, spectral slope, also called spectral gradient, is a measure of dependence of the reflectance on the wavelength. In digital signal processing, it is a measure of how quickly the spectrum of an audio sound tails off towards the high frequencies, calculated using a linear regression. (en)
  • Em astrofísica e planetologia, gradiente espectral é a medida de dependência da refletância no comprimento de onda. Em processamento digital de sinais, é a medida de quão rapidamente o espectro de um som vai em direção a frequências mais altas, calculado usando regressão linear. (pt)
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