GPS satellites orbit 12,500 miles from the Earth – resulting in very low signal strength

Can GPS be Trusted? Part 3

In my previous posts, I discussed the shortcomings and benefits of utilizing GPS as a primary Position Navigation and Timing (PNT) source. I also examined methods that provide Assured PNT (or A-PNT). These include hardening the GPS signal against jamming, while at the same time jamming the enemy’s receivers, utilizing encryption to provide spoofing immunity, and complementing GPS with other forms of PNT equipment.

This final post will focus on how complementing PNT systems can be combined together in a military vehicle and how this can be efficaciously integrated with other military ground vehicle systems.

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