Maximum unambiguous velocity

From Glossary of Meteorology
Revision as of 16:23, 25 April 2012 by imported>Perlwikibot
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)



maximum unambiguous velocity

The maximum range of radial velocity that can be observed without ambiguity by a Doppler radar, sodar, or lidar.

Velocities outside this interval are folded into the interval. For a pulsed radar or sodar operating with an interpulse period T, or a lidar with an A/D converter sampling interval T, the unambiguous velocity interval is -λ/4T to +λ/4T, where λ is the operating wavelength. This interval can be extended by the use of dual PRF and other techniques.
See velocity aliasing, Nyquist frequency.


Retrieved from "https://glossarystaging.ametsoc.net/w/index.php?title=Maximum_unambiguous_velocity&oldid=10139"
Powered by MediaWiki
Powered by WikiTeq
Powered by Semantic MediaWiki
Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.