This paper presents a simplified scheme for complex permittivity inversion of a double bounce scattering using polarimetric measurements. A forward scattering model is employed to establish the relationship between the observed far field and the underlying permittivity profiles. An inversion scheme based on an approximation is then developed to separately obtain the complex permittivity values corresponding to the two surfaces that constitute a dihedral structure. Electromagnetic simulations demonstrate the effectiveness of the proposed method in accurately recovering the complex permittivity values. Using real airborne data provided by ONERA, the proposed scheme was then utilized to test the possibility of extracting the complex permittivity profiles from double bounce scattering signatures in PolSAR imagery. The obtained complex permittivity profiles exhibit a correlation with previous studies, indicating the reliability of the inversion scheme to study the inverse double bounce scattering problem.