Abstract: A general expression for the radar cross section(RCS) of an arbitrarily simple shaped scatterer is synthesized after analyzing the scattering characteristics of the simple shaped scatterers. This is a theoretical basis not only for the deduction of RCS values in the model measurement of the complex scatterer under the non ideal scaling conditions and the extrapolation of RCS frequency characteristic curve of the complex scatterer, but also for identifying radar targets through RCS frequency characteristics.

Key words: basic scatterer, model measurement, RCS, frequency characteristics