ITU-R P.840-4 FRENCH-2009 云霧衰減 云霧衰減

Attenuation due to clouds and fog

ITU-T Q.44 FRENCH-1988 衰減失真

The design objectives recommended for carrier terminal equipment by the Recommendation cited in [3] are such that for a chain of six circuits, each

ATTENUATION DISTORTION

ITU-R PN.833-1-1994 植被衰減

that attenuation in vegetation can beimportant inseveral practical applications

Attenuation in Vegetation

ITU-R P.676-7-2007 大氣衰減

Recommendation ITU-R P.676 provides methods to estimate the attenuation of atmospheric gases on terrestrial and slant paths using

Attenuation by Atmospheric Gases

ITU-T Q.44-1976 衰減失真

Attenuation distortion

ITU-R P.833-2016 植被衰減

Attenuation in vegetation

ITU-T G.132-1972 衰減失真

Attenuation distortion

ITU-R P.833-7-2012 植被衰減

Vegetation decline

EIA-455-78-1987 FTOP-78 單模光纖的光譜衰減衰減測量

FTOP-78 Spectral-Attenuation Cutback Measurement for Single-Mode Optical Fibres

EIA/TIA-455-78A-1990 FTOP-78 單模光纖的光譜衰減衰減測量

FTOP-78 Spectral-Attenuation Cutback Measurement for Single-Mode Optical Fibres

ITU-R P.833-4-2003 植被衰減

Attenuation in vegetation

ITU-T Q.44 SPANISH-1988 衰減失真

The design objectives recommended for carrier terminal equipment by the Recommendation cited in [3] are such that for a chain of six circuits, each

ATTENUATION DISTORTION

ITU-T Q.44-1989 衰減失真

To assess the attenuation distortion of the international chain, the limits indicated for international circuits in Recommendation G.151, $ l [4] must

Attenuation Distortion - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 2 pp

ITU-R P.840-6-2013 云霧衰減

This Recommendation provides methods to predict the attenuation due to clouds and fog on Earth-space paths

Attenuation due to clouds and fog

ITU-T G.141-1988 衰減失真

Attenuation distortion