Unlike space-based near-nadir viewing radars, X-SARs will mainly measure the slant-path integrated scattering and attenuation of precipitation in orthogonal oblique directions.. A microwave model for simulating the normalized Radar Cross Section (NRCS) SAR response was set up in this work and exploited to train the proposed X-SAR retrieval algorithms. The rain-cloud 2-D shape was modeled as product of a horizontal and a vertical distribution function. An inversion approach, based on the Volterra Integral Equatio (VIE), was applied to a X-SAR/SIR-C case study. The VIE approach is a mathematically elegant way to treat the SAR inverse problem, but it needs to be generalized to vertically- inhomogeneous media to be useful in atmospheric applications.
Effects of Atmospheric Precipitation on Spaceborne Synthetic Aperture Radar Measurements / Marzano, FRANK SILVIO; Mori, Saverio; Pierdicca, Nazzareno; Pulvirenti, Luca; J. A., Weinman. - (2009), pp. 970-973. (Intervento presentato al convegno 37th European Microwave Conference tenutosi a Rome, ITALY nel SEP 29-OCT 01, 2009) [10.1109/eumc.2009.5296329].
Effects of Atmospheric Precipitation on Spaceborne Synthetic Aperture Radar Measurements
MARZANO, FRANK SILVIO;MORI, SAVERIO;PIERDICCA, Nazzareno;PULVIRENTI, Luca;
2009
Abstract
Unlike space-based near-nadir viewing radars, X-SARs will mainly measure the slant-path integrated scattering and attenuation of precipitation in orthogonal oblique directions.. A microwave model for simulating the normalized Radar Cross Section (NRCS) SAR response was set up in this work and exploited to train the proposed X-SAR retrieval algorithms. The rain-cloud 2-D shape was modeled as product of a horizontal and a vertical distribution function. An inversion approach, based on the Volterra Integral Equatio (VIE), was applied to a X-SAR/SIR-C case study. The VIE approach is a mathematically elegant way to treat the SAR inverse problem, but it needs to be generalized to vertically- inhomogeneous media to be useful in atmospheric applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
