Radar cross section

radar cross section

For a scattering object or target at a certain range, the cross-sectional area of an isotropic scatterer at the same range that would return the same power to a radar as the actual target.

The radar cross section σ may be defined by

where S_i is the power density incident on the target at range r and S_r is the backscattered power density at the receiving antenna.
See radar equation;
compare backscattering cross section.

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