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Proceedings Paper

Development of the one-sided nonlinear adaptive Doppler shift estimation techniques
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Paper Abstract

The new development of a one-sided nonlinear adaptive shift estimation technique (NADSET) is introduced. The background of the algorithm and a brief overview of NADSET are presented. The new technique is applied to the wind parameter estimates from a 2-μm wavelength coherent Doppler lidar system called VALIDAR located in NASA Langley Research Center in Virginia. The new technique enhances wind parameters such as Doppler shift and power estimates in low Signal-To-Noise-Ratio (SNR) regimes using the estimates in high SNR regimes as the algorithm scans the range bins from low to high altitude. The original NADSET utilizes the statistics in both the lower and the higher range bins to refine the wind parameter estimates in between. The results of the two different approaches of NADSET are compared.

Paper Details

Date Published: 8 October 2009
PDF: 7 pages
Proc. SPIE 7479, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing V, 74790M (8 October 2009); doi: 10.1117/12.834595
Show Author Affiliations
Jeffrey Y. Beyon, NASA Langley Research Ctr. (United States)
Grady J. Koch, NASA Langley Research Ctr. (United States)
Upendra N. Singh, NASA Langley Research Ctr. (United States)
Michael J. Kavaya, NASA Langley Research Ctr. (United States)
Judith A. Serror, California State Univ., Los Angeles (United States)


Published in SPIE Proceedings Vol. 7479:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing V
Upendra N. Singh; Gelsomina Pappalardo, Editor(s)

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