Backscattering cross section is a property of an object that determines what proportion of incident wave energy is scattered from the object, back in the direction of the incident wave. It is defined as the area which intercepts an amount of power in the incident beam which, if
radiated isotropically, would yield a reflected signal strength at the transmitter of the same magnitude as the actual object produces.
[Stout, G. E., & Mueller, E. A. (1968). Survey of relationships between rainfall rate and radar reflectivity in the measurement of precipitation. Journal of Applied Meteorology, 7(3), 465-474.]
See also
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Radar cross-section
Radar cross-section (RCS), also called radar signature, is a measure of how detectable an object is by radar. A larger RCS indicates that an object is more easily detected.
An object reflects a limited amount of radar energy back to the source. ...
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Target strength
The target strength or '' acoustic size'' is a measure of the area of a sonar target. This is usually quantified as a number of decibels. For fish such as salmon, the target size varies with the length of the fish and a 5 cm fish could have a t ...
References
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Radar theory
Radiation