公开(公告)号：US12135378B2

公开(公告)日：2024-11-05

申请号：US17645505

申请日：2021-12-22

Applicant: Raytheon Company

Inventor： Gennady Y. Poberezhskiy ,  Edward M. Jackson ,  Brian R. Gonzales ,  Jarrett M. Perry ,  William K. Wallace ,  Paul H. Grobert ,  Matthew P. Salkin

IPC: G01S19/21 ,  H04B7/08 ,  H04K3/00

Abstract: A method and apparatus for providing a standalone anti jamming (AJ) nuller-beamformer. Signals from an antenna array include a sum of Global Navigation Satellite System (GNSS) signals and jamming signals from a plurality of spatial sources. A front end is configured to amplify, filter, down-convert, and sample the input signals which are then filtered, down-converted, and decimated prior to frequency-domain and time-domain partitioning. Weights are computed and applied for spatial nulling of jamming signals in each frequency bin for the partitioned signals. Frequency and time-domain reconstruction generates a reconstructed signal with suppressed jamming.