Correlation filters have been used very successfully in automatic target recognition (ATR) applications for ground- based tactical targets. Specifically, the maximum average correlation height filter has shown excellent performance in target detection and aimpoint selection for various types of armored vehicles in cluttered environments. This type of ATR is particularly well suited for implementation in an optical correlator due to the use of Fourier domain processing. We report preliminary test results of this type of SDF filter against ballistic missile defense targets and evaluate it in the context of real-time missile system performance.
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