A measurement method, marine radar technology, applied in the direction of measuring device, fluid velocity measurement, velocity/acceleration/shock measurement, etc.
NCEI Geoportal
Implementation of S-band marine radar for surface wave measurement
Wave radar - Wikipedia
Monitoring the Ocean with Radar
Wave Analyzer, Marine Equipment For Merchant Marine
Wave radar - Wikipedia
An overview on SAR measurements of sea surface wind - ScienceDirect
Ocean Infinity Will Soon Start New Search for MH370 « MH370 and
Analysis of sea waves and wind from X-band radar - ScienceDirect