Analysis and simulation on earth clutter of space-based radar

The performance of Space-Based Radar (SBR) to detect air or ground moving targets is influenced by earth clutter, so an effective algorithm to suppressing clutter can be designed if knowing the power and distribution of earth clutter. In this paper, based on the model of airborne pulse-Doppler radar, the model of SBR on power density spectrum of earth clutter in range-Doppler space is deduced, and simulated with a phased array antenna. Simulation results show the effectiveness of the proposed model.