A 3D GL EM Modeling and Inversion for Forest Exploration and Felling

摘要

In this paper, we proposed a 3D GL effectromagnetic (EM) modeling and inversion for the forest Exploration and Felling (GLEMFEF). We consider the inhomogeneous forest domain which is embedded in the earth and air two layered media. The forest domain includes inhomogeneous EM parameters. The EM field differential integral equation and integral equation are used to formulate the EM field in the forest domain. The inhomogeneous forest domain is divided into the several small sub domains. The forest EM parameter in the sub domain is isotropy or anisotropy variable. The Global field is updated by the Local EM scattering field in the sub domain. When the Global forest field propagates through the all sub domains, the GL forest EM field is obtained. The GL forest modeling is very fast to calculate EM field when the EM parameters are updated in the each sub domain. This merit accelerates the GL Metro Carlo inversion for the forest imaging. The 3D GL forest modeling and inversion can be useful for forest exploration, forest environment, animal, Chinese medical tree and grass, forest fire fighting, felling, and mine exploration in the ground under forest.