Comparison of spaced-antenna baseline wind estimators: Theoretical and simulated results

Formulas for the theoretical precision of cross‐beam winds measured with spaced‐antenna profilers are developed and compared with results obtained from simulations for conditions of high signal‐to‐noise‐ratios. These formulas relate the precision of wind measurement to radar and atmospheric paramete...

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Bibliographic Details
Published in:Radio science 2004-02, Vol.39 (1), p.RS1006-n/a
Main Authors: Doviak, Richard J., Zhang, Guifu, Cohn, Stephen A., Brown, William O. J.
Format: Article
Language:English
Subjects:
Electro-optics
Radio Science
Remote sensing
Signal processing
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Summary:Formulas for the theoretical precision of cross‐beam winds measured with spaced‐antenna profilers are developed and compared with results obtained from simulations for conditions of high signal‐to‐noise‐ratios. These formulas relate the precision of wind measurement to radar and atmospheric parameters. Formulas for Briggs' Full Correlation Analysis, the Intersection method, and the Slope‐at‐Zero‐Lag method are each presented for two implementations‐estimating parameters for assumed Gaussian shaped correlation functions, and a direct finite difference method where this assumption is not necessary. For each wind measurement method and implementation, these formulas are used to evaluate, as an example, the theoretical performance of MAPR, NCAR's 915 MHz, Multiple Antenna Profiling Radar. The theory is also compared with the standard error obtained from simulations presented by Kawano et al. [2002] for the MU radar in Shigaraki, Japan. Comparisons show that the Intersection and Briggs' FCA methods are identical and provide the best performance.
ISSN:0048-6604
1944-799X
DOI:10.1029/2003RS002931