Article contents
V — The Sea Surface and Doppler
Published online by Cambridge University Press: 18 January 2010
Extract
For the efficient use of doppler techniques it is necessary that the beam of short radio waves, emitted from the aircraft shall be reflected from the roughness of the surface or from a plane surface at right angles to the incident beam. Over land there are plenty of roughnesses from which the beam is always thrown back, but over smooth sea there would seem to be no surface feature which can reflect the beam. It therefore is of interest to know the effect of surface winds in producing waves and ripples with various slopes and secondly the frequency with which light winds occur in various parts of the world.
- Type
- Doppler Navigation
- Information
- Copyright
- Copyright © The Royal Institute of Navigation 1958
References
REFERENCES
- 2
- Cited by