Title :
Stochastic modelling of atmospheric effects in SAR differential interferometry
Author :
Bisceglie, M. Di ; Fusco, A. ; Galdi, C. ; Sansosti, E.
Author_Institution :
Facolta di Ingegneria, Universita degli Studi del Sannio, Benevento, Italy
Abstract :
A stochastic model for the atmospheric disturbance in DInSAR images is presented. Using a ray-propagation approach, the random path between two points in a turbulent atmosphere is modeled as a three dimensional random walk. First and second-order probability density functions of the differential phase of the atmospheric disturbance are derived and the model is experimentally validated by comparison between the characteristic function of real data and that predicted from the theoretical model
Keywords :
atmospheric electromagnetic wave propagation; radar theory; radiowave interferometry; radiowave propagation; synthetic aperture radar; 3D random walk; DInSAR images; SAR differential interferometry; atmospheric disturbance; atmospheric effects; differential phase; first-order probability density function; ray-propagation approach; second-order probability density function; stochastic model; turbulent atmosphere; Atmosphere; Atmospheric modeling; Electromagnetic propagation; Interferometry; Predictive models; Probability density function; Refractive index; Stochastic processes; Surface topography; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978127
