A field-scale remote soil moisture sensing technique that exploits polarization mode dispersion (PMD) associated with radio frequency (RF) signal propagation is considered in this paper. Microwave polarization responses from rough surface scattering are quantified using a dual-polarized receiver system to estimate PMD responses. Changes in PMD response are elicited by changes in the dielectric properties due to soil moisture changes. The ability of PMD characterizations to remotely detect changes in soil moisture, with responses that exhibit good correlation to ground probe measurements, is demonstrated using a prototype with widely separated transmitter/receiver system deployed at the MATERHORN field experiments conducted at the US Army Dugway Proving Ground, Utah.
Field-scale remote sensing of soil moisture based on polarimetric characterization of microwave reflections / Pratt, T.G; Lin, Z.; Di Sabatino, S; Leo, L.; Dodson, N; Strycker, B; Silliman, S.; Fernando, H.J.S.. - In: MEASUREMENT SCIENCE & TECHNOLOGY. - ISSN 0957-0233. - STAMPA. - 26:10(2015), pp. 105801.1-105801.8. [10.1088/0957-0233/26/10/105801]
Field-scale remote sensing of soil moisture based on polarimetric characterization of microwave reflections
DI SABATINO, SILVANA;Leo, L.;
2015
Abstract
A field-scale remote soil moisture sensing technique that exploits polarization mode dispersion (PMD) associated with radio frequency (RF) signal propagation is considered in this paper. Microwave polarization responses from rough surface scattering are quantified using a dual-polarized receiver system to estimate PMD responses. Changes in PMD response are elicited by changes in the dielectric properties due to soil moisture changes. The ability of PMD characterizations to remotely detect changes in soil moisture, with responses that exhibit good correlation to ground probe measurements, is demonstrated using a prototype with widely separated transmitter/receiver system deployed at the MATERHORN field experiments conducted at the US Army Dugway Proving Ground, Utah.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
