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Session D5: NAVWAR: User Technologies

Protected RF Mode for M-Code Receiver Interoperability with Anti-Jam Electronics
Greg Farley, BAE Systems/NSS
Alternate Number 2

BAE Systems Navigation & Sensor Systems is developing a “Protected RF” mode to address interoperability with external anti-jam electronics. Modernized GPS User Equipment (MGUE) Increment 1 Ground Embedded TRD specifies performance and operations with fixed-radiation pattern antennas (FRPA) only. Increasing numbers of DoD platforms are planning to incorporate anti-jam electronic “nuller” front ends as part of their modernized Position, Navigation and Timing (PNT) system solutions. A new mode is required to address operation with third party nullers that enhance the interface capabilities of the Ground Embedded TRD. Replacement of a FRPA antenna with a nuller impacts the M-Code receiver integrity operations, fault testing, and timing calculations, at a minimum. This presentation will discuss the design approach for our new “Protected RF” mode which is intended to support integration with nullers and provided mechanisms to support modernized PNT system-level performance.
Objectives: The objective of this presentation is to inform the attendees of BAE Systems development of GPS receivers that are compatible with third-party anti-jam systems.
Anticipated Results: Attendees will understand that BAE Systems is developing receivers capable of interoperating with third-party anti-jam systems and will include that information in their M-Code transition planning.



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