Doppler spectrum

From Glossary of Meteorology



Doppler spectrum

In radar, the power spectrum of the complex signal, expressed as a function of Doppler frequency or Doppler velocity. Denoted by S(v), it may be thought of as the reflectivity- weighted radial velocity distribution of the scatterers in a distributed target.

That is, S(v) dv denotes the received power in the velocity interval dv. With this definition, S(v) is normalized such that
ams2001glos-De41
where
ams2001glos-Dex09
is the mean received power as defined by the radar equation.


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