United States Patent – Awarded To Mayflower Communications Company Inc. – Iridium
Patent Awarded – Integrated Interference Mitigation for Iridum User Handsets and GPS Receivers – March Mayflower was awarded a United States Patent (US11,262,457 B2 – March 1, 2022) for our Integrated Interference Mitigation for Iridium User Handsets and GPS Receivers. Mayflower would like to congratulate the inventors Dr. Christopher Zarowski, Dr Huan-Wan Tseng, and Mr William LeComte for their achievement. This capability is currently in use in support of SOCOM and other US Government across the globe in support of real world NAVWAR Operations.
This capability provides a method for concurrently protecting Iridium and GPS L1/L2 band received satellite signals against interference signals (e.g., jamming signals) using a space-time adaptive processing (STAP). While the GPS signal is protected against jamming using nulling of the interfering signals, the Iridium signal is protected using Beam-forming. A single broadband small controlled reception pattern antenna (sCRPA) array receives both the GPS (L1 and L2) and Iridium signals for the STAP-based anti-jam solutions outputting filtered Iridium and GPS signals. Use of a common small broadband antenna and common front end signal processing of the received signal enables an integrated system for use on size, weight, and power constrained platforms.
This capability will greatly enhance the war fighting capability and dovetail into protecting the upcoming MGUE Increment II GPS Receivers that implement Alternative Navigation capabilities.