Accession Number : ADD013368

Title :   Adaptive Fast Fourier Transform Weighting Technique to Increase Small Target Sensitivity.

Descriptive Note : Patent, Filed 2 Oct 84, patented 14 Jul 87,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Bryant, Stephen M ; Speir, Donald J

Report Date : 14 Jul 1987

Pagination or Media Count : 13

Abstract : 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.

Descriptors :   *RADAR SIGNALS, *SIGNAL PROCESSING, *PATENTS, *FAST FOURIER TRANSFORMS, ADAPTIVE SYSTEMS, BUFFERS, CIRCUITS, GATES(CIRCUITS), INPUT, NORMALIZING(STATISTICS), OPERATION, SCALE, SENSITIVITY, TARGETS, WEIGHTING FUNCTIONS, INPUT OUTPUT DEVICES, RADAR TARGETS

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE