Anti-jamming technique based on sampling reconstruction in parasitic spaceborne SAR system

Abstract

For the problem of being unable to use spatial info directly to anti-jam in parasitic SAR system with sparse and irregular configured receivers, this paper proposes a new method to use spatial info. This method first uses multi-channel SAR on each small satellite, then uses the nonuniform data to reconstruct a uniform sequence, then uses space-time adaptive processing rather than beamforming to remove effect of jamming. Simulation result shows effectiveness of this method.