The DD-R28 medium-range X-band four-element array radar 1, Product Overview The DD-R28 medium-range X-band four-element array radar incorporates a fully solid-state, fully coherent, and pulse Doppler system. This empowers it to perform all-weather detection and early warning of "low, small, slow" targets. By leveraging machine learning and AI recognition technologies founded on "micro-Doppler signatures" and "flight path features," the system achieves ultra-low fals