Bistatic SAR: Forecasting Spatial Resolution

This paper derives closed-form expressions for bistatic synthetic aperture radar (SAR) spatial resolution of a generalized system from the $k$ -space or the wavenumber domain. These spatial resolution equations have not previously appeared in the literature. From these equations, significant resolution is found in range and cross range, forecasting a forward-scatter bistatic SAR image when the elevation angles of each bistatic platform are significantly different. Simulation and laboratory tests demonstrated the forward-scatter resolution.