Blog Editor’s Note: There is a lot to unpack in the three short responses to the question posted to the panel.
Our response to their answers is “all of the above.” We absolutely need A holistic approach that includes interference detection and mitigation, widespread use of more robust receivers, and multiple complementary alternatives.
Budgeteers often look for a single, quick, and inexpensive fix to a given. Good luck with that.
There is no quick fix for a thirty year addiction to a single source of wireless precise time and location. Take the patient abruptly off the drug an he suffers severely or dies. Rather, you have to make the drug less harmful, the patient stronger, and provide alternative medicines in case the primary one is not available or doesn’t provide all the patient needs.
PNT is one of those really important national services that requires continual leadership and management. We have failed as a nation to do this and are in in great danger as a result.
Two decades ago, the Volpe National Transportation System Center released its landmark report on the vulnerability of GPS. Have this study and its many successors helped move us to the necessary levels of PNT resilience? Have we done enough? What is left to be done?