JPL's Wireless Communication Reference Website Slide Show

Doppler Spread

Spectral Power Density due to Doppler spreading.

Frequency normalized to Doppler spread f_m and centered around carrier frequency.
Power density normalized to 3p/2pf_m, with p the local mean power.

Blue: Electrical component in z-direction. Signal picked up by vertical dipole
Red: Magnetic component along x-axis (as picked up by loop antenna)
Green: Magnetic component along y-axis (as picked up by loop antenna)

JPL's Wireless Communication Reference Website © Jean-Paul M.G. Linnartz, 1993, 1995.