The Doppler power spectrum - Introduction

Because there are a large number of drops in a pulse volume, they will each provide their own backscattered power and Doppler shift.

One can then plot the Doppler power spectra of the data -->>

From the power spectra, one can derived the mean radial velocity and radar reflectivity factor:

= mean Doppler-shifted frequency

= mean radial velocity

S(v) = Backscattered Power

= total average power =

which is the area under the curve

Most radars do not keep the full Doppler spectrum, only

and .