Method for reducing the false alarm rate in radar images

摘要

The method involves using a space-time adaptive processing filter to suppress fixed targets in antenna side lobes, comparing amplitudes or powers of Doppler frequency cells with a constant threshold and combining the derived alarms into clusters, using only alarms with amplitudes or powers above the threshold, forming and combining Doppler frequency clusters, comparing target and test functions and evaluating to identify a moving or fixed target. The method involves suppression of fixed target echoes in the main lobe using space-time adaptive processing or STAP filters, using the STAP filter to suppress fixed targets in antenna side lobes for visible side lobes in the radar image, comparing the amplitudes or powers of Doppler frequency cells with a constant threshold and combining the derived alarms into clusters, using only alarms with amplitudes or powers above the threshold, forming and combining Doppler frequency clusters, comparing a target function with a test function and evaluating to identify a moving or fixed target.