How do you calculate Doppler?

For example, assume a system operating at a 2 GHz frequency band, with a mobile user traveling at a speed of 120 km/h (33.3 ms/s). Doppler Frequency shift = 2 ⋅ 10 9 ⋅ 33 . 3 / ( 3 ⋅ 10 8 ) = 220 Hz .

Doppler Effect Formula / Equation V r = speed of the receiver relative to the medium, +c if the receiver is moving towards the source, -c if the receiver is moving away . Vc = speed of the source relative to the medium, +c if the source is moving away -c if the source is moving towards the receiver.

Doppler Effect Frequency Calculation