Journal article
A tunable closed form model for the structure function of tropospheric delay
Several interferometric synthetic aperture radar applications could benefit from the availability of a closed-form model for the second-order statistics of atmospheric delay. Due to the variability of the latter, it would also be desirable for the model to be tunable to some acquisition-specific information, describing the atmospheric state.
In this letter, a closed-form expression for the zenith delay structure function of tropospheric propagation delay is derived from a two-regime power spectral density function reported in the literature. The power at a specific spatial frequency is used as a free model parameter, which may be tuned to available measurements or, in the absence of these, to atmospheric statistics.
The latter approach is used to compare the derived model with previously published results.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2008 |
| Pages: | 222-226 |
| ISSN: | 15580571 and 1545598x |
| Types: | Journal article |
| DOI: | 10.1109/LGRS.2008.915738 |
| ORCIDs: | Merryman Boncori, John Peter |
Atmospheric measurements Atmospheric modeling Atmospheric propagation delay Closed-form solution Error analysis Geophysical measurements Interferometry Propagation delay Refractive index Statistics Synthetic aperture radar atmospheric state atmospheric statistics interferometric synthetic aperture radar power spectral density function radar interferometry radiowave propagation remote sensing by radar statistical modeling synthetic aperture radar synthetic aperture radar (SAR) interferometry tropospheric electromagnetic wave propagation tropospheric propagation delay tunable closed-form model zenith delay structure function
