Surveillance and air defence radar systems encompass the antennas, transmit/receive (T/R) modules, phased-array apertures, signal and data processors, and power conditioning units used to detect, track, and classify airborne threats across long-range search and fire-control roles, employing technologies such as AESA, pulse-Doppler waveform generation, low-probability-of-intercept (LPI) techniques, and GaN-based RF front ends.
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