Abstract :
A novel beamforming architecture is presented in which space-time adaptive processing (STAP) for clutter suppression in airborne radar is implemented with tap delays of multiple PRIs. The resulting output is combined with the unadapted output. This can result in improved detection performance for targets obscured by clutter that covers only a small proportion of the unambiguous Doppler extent, as often occurs in high PRF modes
Keywords :
Doppler radar <improv. STAP perform., high PRF appls., techs.>; airborne radar <improv. STAP perform., high PRF appls., techs.>; array signal processing <improv. STAP perform., high PRF appls., techs.>; phased array radar <improv. STAP perform., high PRF appls., techs.>; radar clutter <improv. STAP perform., high PRF appls., techs.>; radar detection <improv. STAP perform., high PRF appls., techs.>; radar signal processing <improv. STAP perform., high PRF appls., techs.>; radar theory <improv. STAP perform., high PRF appls., techs.>; space-time adaptive processing <improv. STAP perform., high PRF appls., techs.>; airborne radar; beamforming architecture; clutter suppression; high pulse repetition frequency; improved detection performance; knowledge-based method; multidimensional adaptive filter; normalised spatial frequencies; pulse-Doppler phased-array radar; slow-moving target detection; space time adaptive processing; tap delays; unadapted output; unambiguous Doppler extent;
