Bistatic Terrain Scattering Model for Microwave SAR Simulation

"Eureka Aerospace proposes to develop bistatic terrain scattering models to be later implemented into bistatic SAR simulator. The models will describe scattering from bare earth and from foliage. All models will cover L-band through Ku-band scattering atarbitrary polarization. The bare earth model will be based on fractal geometry, while the foliage model will be based on scattering from collection of the objects having canonical shapes such as discs, needles representing different parts of foliage, bothsuperimposed on facets, where the orientation of facets is determined by the earth surface local topography. The models will be capable of assigning a surface roughness with prescribed probability density function, where the standard deviation of terrainheight profiles and correlation length of the terrain are used as input parameters. The small and large-scale characterization of the scattering will result in the inclusion of the speckle phenomenon in the image. Ultimately, the simulator, which will bebased on the developed models, will be capable of using the available DTEDs as an input file along with land cover databases. Bistatic models and simulator have the potential of enhancing Eureka Aerospace's performance prediction capabilities in variouscommercial and governmental/military applications, topomap and image generation, detection and localization of landmines/UXO,dry wells and and other subsurface targets."