Adaptive Fast Fourier Transform Weighting Technique to Increase Small Target Sensitivity.
Patent, Filed 2 Oct 84, patented 14 Jul 87,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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This patent discloses a radar signal processor which operates without clutter canceller and AGC circuits by applying an adaptive weighting circuit which adjusts the FFT weighting function on a range gate basis to account for clutter in that range gate. An input buffer determines Log2 values per range gate for use in the weighting operation and a normalization circuit scales the weighted Fast Fourier Transform output to facilitate post-processing.
- Active and Passive Radar Detection and Equipment