delay Doppler mapping

delay Doppler mapping

[di′lā ′däp·lər ‚map·iŋ]
(mapping)
Mapping of a planet by illuminating it with a radar beam and measuring the Doppler shift caused by rotation of the planet.
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Other partners include Surrey Satellite Technology, which will provide the Delay Doppler Mapping Instrument, and the NASA Ames Research Center, which will provide the Deployment Module.