DopplerVmaxDual
returns Doppler velocity [m/s]
from a mobile platform. From Jorgensen (1983), Eqn 2
DopplerVmaxDual(lam, PRF1, PRF2)
Jorgensen, D., Hildebrand, P.H., and Frush, C., 1983 Feasibility test of an airborne pulse-Doppler meteorological Radar J. Clim. Appl. Meteorol