I. Introduction
Significant wave height (SWH) is one of the most important indices to describe the severity of the ocean environment. In recent years, there has been considerable progress in retrieving using satellite signals of opportunity (SoOp) such as those of broadcasting and communication. For example, retrieval algorithms from SoOp have been developed using the coherence time of the interferometric complex field (ICF) [1]–[3] and the Doppler centroid and Doppler spectrum width [4]. In this letter, we continue the investigation of Doppler processing of SoOp for retrieval through numerical modeling of bistatic scattering. In particular, we seek to gain an understanding of how and vary with or relevant ocean surface wave properties. This improved understanding can help guide our algorithm’s development for surface wave retrieval using SoOp scattering from the ocean surface. Because coastal regions are important SoOp coverage areas, we consider wave development in both deep water and finite depths.