One-stationary Bistatic forward-looking SAR imaging based on improved nonlinear chirp scaling algorithm

The forward-looking imaging problem of synthetic aperture radar (SAR) can be resolved by adopting the bistatic configuration. A bistatic configuration with a stationary transmitter and a forward-looking receiver is introduced and the two-dimensional spectrum is derived, and then an improved nonlinear chirp scaling algorithm is used to focus the data. The imaging quality is compared with the traditional nonlinear chirp scaling algorithm; the simulation results verify the 2D imaging ability of the proposed method.