Institute for Atmospheric and Climate Science

Dealiasing of Doppler velocities

ETH Doppler Radar

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Visit the Website of the ETH Doppler radar at

Doppler radars as the one installed at ETH Hönggerberg not only observe the reflectivity (echo power) but also the radial component of the echo movement. This so-called Doppler velocity is folded (aliased) wherever the radial velocity exceeds the Nyquist velocity. A correction or(dealiasing) algorithm must be applied as the one developed at the institute.

Further information about the dealiasing technique

An aliased Doppler velocity image

Contact: Marc Wüest


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© 2015 ETH Zurich | Imprint | Disclaimer | 25 January 2005