Radar Signature
A radar signature consists of information about characteristic echo signals of a reflecting object (target). Like a fingerprint, it is a way to determine the type of target.
The radar signature does not only concern the aspect-dependent amplitude changes of the Radar Cross-Section, (RCS) but also the spectrum of the Doppler frequencies, their characteristic modulation or harmonics in the echo signal. Although the radar signature also contains information about the effective reflection surface of the target, it cannot be equated with it. Radar signatures are determined empirically and collected in databases. They play a major role in target characterization, especially in military radar equipment.
