ISO TC 211 Geographic information/Geomatics Committee site

ISO/TC 211 Geolexica

Concept backscattering coefficient”

Term ID

2346

source

ISO/TS 19159-3:2018, (E), 3.6

eng

backscattering coefficient

average radar cross section per unit area

Note 1 to entry: If the radar return from the illuminated area is contributed by a number of independent scattering elements, it is described by the backscattering coefficient instead of radar cross section used for the point target. It is calculated as `sigma^0 = sigma/A` Where `sigma` is the total radar cross section of an area `A`. `sigma^0` is a dimesionless parameter and is usually expressed in decibels (dB) as follows: `sigma_(dB)^0 = 10 log_(10) sigma^0`

Note 2 to entry: “Backscattering coefficient” is sometimes called “normalized radar cross section”.

ORIGIN: ISO/TC 211 Glossary of Terms - English (last updated: 2020-06-02)

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info

  • status: valid
  • classification: preferred
  • date accepted: 2018-05-01

Review

last review performed:
(2018-05-01)
status:
final
decision:
accepted
decision event:
Normal ISO processing
notes:
Publication of document ISO/TS 19159-3:2018(E)