1.   When this Doppler shift is converted to relative velocity it turns out that the velocity varies sinusoidally with time.

2.   The laser-Doppler anemometer measures velocity by measuring the Doppler shift of light scattered within the moving fluid.

3.   The principle of using a Doppler shift to indicate flow velocity can be applied with sound waves instead of light waves.

4.   The faster a car is moving, the higher is the Doppler shift in frequency.

5.   It is conceivable that this additional rapid movement of the listening surface relative to the target causes useful modulations in the Doppler shift, modulations that supply additional information.

6.   It would also reverse the Doppler shift that warps the colors of very fast-moving objects.

7.   The Doppler shift, caused by the relative movement of the two craft, corrupts the data, as do the echoes caused by spurious reflections.