A Joint Sparse Moving Targets Imaging Method for Bistatic SAR

A joint sparse imaging algorithm in bistatic synthetic aperture radar (SAR) for the static and moving targets is proposed in this paper. The imaging processing of mixed received radar data is interpreted as an inversion and separation task, which is the fundamental of the presented algorithm. Radar projection operator of moving targets is constructed and joint iterative sparse imaging processing is then formulated by utilizing a norm constraint and employed on mixed radar data. Due to the differences of doppler characteristic of clutter and moving targets signal, successful separation and inversion of clutter and moving target data could be implemented after joint sparse imaging. Finally, numerical simulation demonstrates the validity of the algorithm.