Dopplergraph

A dopplergraph or dopplergram is a two-dimensional representation of the approaching and receding motions of an object or area. The word "dopplergraph" is a combination of the words doppler and photograph. Dopplergraphs are two-dimensional records of variations in the doppler shift in light intensity.

Dopplergraphs do not need to be a record of the shift of visible light, but of any radiated wave, which includes electromagnetic waves and acoustic waves.[1]

Because the doppler shift is caused by the velocity of the radiating source towards or away from the viewer, a dopplergraph is a picture of the velocities associated with the sources being viewed.

See also

References
  1. Yang, T.C. (2007). "Acoustic dopplergram". The Journal of the Acoustical Society of America. 122 (5): 3088. Bibcode:2007ASAJ..122Q3088Y. doi:10.1121/1.2943032. ISSN 0001-4966.
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