Abstract
The Global Navigation Satellite System Reflectometry (GNSS-R) for land applications have attracted considerable attention. Prior models include the coherent model and incoherent models. There are big differences between these two models. In this paper, we propose a patch model with NMM3D (Numerical Maxwell model of 3D simulations). The models take effects of multiple elevations of land surfaces into account. Results are compared with 1) coherent model, 2) incoherent model, and (3) numerical Kirchhoff simulator (KA simulator). Results of the patch model are consistent with those of KA simulator and have many dB difference with coherent and incoherent model.
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