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| Titel |
Performance evaluation of an all-fiber image-reject homodyne coherent Doppler wind lidar |
| VerfasserIn |
C. F. Abari, A. T. Pedersen, E. Dellwik, J. Mann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 8, no. 10 ; Nr. 8, no. 10 (2015-10-09), S.4145-4153 |
| Datensatznummer |
250116630
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| Publikation (Nr.) |
 copernicus.org/amt-8-4145-2015.pdf |
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| Zusammenfassung |
| The main purpose of this study is to evaluate the near-zero wind velocity
measurement performance of two separate 1.5 μm all-fiber coherent Doppler
lidars (CDLs). The performance characterization is carried out through the
presentation of the results from two separate atmospheric field campaigns. In
one campaign, a recently developed continuous wave (CW) CDL benefiting from
an image-reject front-end was deployed. The other campaign utilized a
different CW CDL, benefiting from a heterodyne receiver with intermediate-frequency (IF) sampling. In both field campaigns the results are compared
against a sonic anemometer, as the reference instrument. The measurements
clearly show that the image-reject architecture results in more accurate
measurements of radial wind velocities close to zero. Close-to-zero
velocities are usually associated with the vertical component of the wind and
are important to characterize. |
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