Md. Reba, Mohd. Nadzri and Rocadenbosch, Francesc and Comerón, Adolfo and Sicard, Michaël (2007) Statistical considerations on the extinction error variance for the Raman lidar inversion algorithm. In: IEEE 10th International Geoscience and Remote Sensing Symposium(IGARSS 2007), 2007, Spain.
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Official URL: http://dx.doi.org/10.1109/IGARSS.2007.4423417
Abstract
At the basis of the Raman lidar extinction inversion algorithm is the derivative of the logarithm of the ratio between the atmospheric nitrogen number density and the range-corrected Raman power return. While its computation is straightforward under ideal (noiseless) conditions, this is not the case under low signal-to-noise ratios, for which the observation noise may lead the logarithm to singular values. This work presents an analytical-statistical overview of the inversion problem and related error bars, tentative noise limiting criteria, and justifies the approximations at play to estimate the inversion error by means of error-propagation techniques for high signal- to-noise ratios. Simulation examples consider a 532/607-nm elastic-Raman system.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | lidar , raman inversion , errorbars , extinction , logtransformed noise |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) Q Science > Q Science (General) |
| Divisions: | Geoinformation Science And Engineering |
| ID Code: | 14483 |
| Deposited By: | Liza Porijo |
| Deposited On: | 25 Aug 2011 04:03 |
| Last Modified: | 25 Aug 2011 04:03 |
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