US 12,235,365 B2
Interference mitigation for received GPS and radio communication signals
Christopher Jonathan Zarowski, Burlington, MA (US); Huan-Wan Tseng, Westford, MA (US); and William LeComte, Burlington, MA (US)
Assigned to Mayflower Communications Company, Inc., Bedford, MA (US)
Filed by Mayflower Communications Company, Inc., Bedford, MA (US)
Filed on Jan. 21, 2022, as Appl. No. 17/581,269.
Application 17/581,269 is a continuation in part of application No. 16/260,468, filed on Jan. 29, 2019, granted, now 11,262,457.
Prior Publication US 2022/0146687 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 19/21 (2010.01); G01S 19/23 (2010.01); G01S 19/24 (2010.01); G01S 19/14 (2010.01); G01S 19/20 (2010.01); G01S 19/22 (2010.01); G01S 19/36 (2010.01)
CPC G01S 19/21 (2013.01) [G01S 19/23 (2013.01); G01S 19/246 (2013.01); G01S 19/14 (2013.01); G01S 19/20 (2013.01); G01S 19/215 (2013.01); G01S 19/22 (2013.01); G01S 19/24 (2013.01); G01S 19/36 (2013.01)] 36 Claims
OG exemplary drawing
 
1. An antijam system for suppressing interference signals received with Iridium and GPS and other GNSS signals comprising:
An antenna array having a plurality of antenna elements with signal reception coverage over the 950 MHz o 1.65 GHz frequency band;
an RF front end for outputting downconverted and digitized antenna array received signals;
means for digitally downconverting the digitized signals to baseband, suppressing the interference signals by filtering the baseband signals, and outputting filtered Iridium and GPS and other GNSS signals; and
a navigation system for determining antenna array orientation.