Study on the Design of a Search Beam Grid for Efficient Space Situational Awareness Radar

Space surveillance radar is an ultra-long-range radar that detects at least several hundred kilometers to more than 1,000 km and requires high-power large-scale antennas and efficient resource management. In this study, we propose a beam grid design approach aimed at reducing search time by setting detection ranges in space surveillance radars, considering the beamforming performance, beam shape, and waveform design. The process of designing the beam grid shape involves examining the detection range and antenna performance, including margin gains. Based on these considerations, an algorithm is proposed to simplify the derivation of the basic beam grid.