Abstract
The small perturbation method (SPM) for rough surface scattering has been studied extensively in many fields such as optics, remote sensing and propagation, while the energy conservation for SPM is not clear. In this paper, based on Huygens' Principle and the extinction theorem, the SPM is used to derive the second order transmitted field. By calculating the reflectivity and transmittance of SPM to the first order and the second order, we can study the region of validity for the small perturbation method. It is shown that the first order SPM violates the conservation of energy, while the second order solutions conform to the energy conservation. This is particularly important for the calculation of transmittance or emissivity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
