Customer Spotlight: Northrop Grumman

December 18, 2023

Proliferated LEO constellation Northrop Grumman
Image above: Northrop Grumman’s LEO Satellite Payload for DARPA Revolutionizes Positioning, Navigation and Timing


In a December 2023 article entitled, “Integrating and Developing GPS Technology” on, Northrop Grumman outlined how they have used Spirent Federal’s advanced signal simulation equipment.

An excerpt:

“In the early 2000s, Northrop Grumman initiated research into the feasibility of a Global Navigation Satellite System (GNSS) software-defined radio and started development of what we now call SERGEANT (Software Enabled Reconfigurable GNSS Embedded Architecture for Navigation and Timing).

The company used Spirent signal simulators to evaluate proper GPS M-code tracking over a wide range of test cases in a controlled laboratory environment. Together with the Air Force Research Laboratory (AFRL), Northrop Grumman demonstrated advanced receiver capabilities using SERGEANT starting in 2010. In 2018, AFRL used SERGEANT for the first real-time flight demonstration of a GPS M-code SDR.”

Read the full article.

Related webinar:  GPS Vulnerability Mitigation: Using Inertial & Complementary PNT with Northrop Grumman

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