[time-nuts] GPS vulnerability and e-Loran

[jimlux]

On 11/29/19 2:46 PM, Tom Van Baak wrote:
>  > back when Woodford and Nakamura wrote their system engineering report.
> 
> For those of you wondering about Jim's comment, start with this article:
> 
> https://www.xyht.com/gnsslocation-tech/aerospace-corps-role-development-gps/ 
> 
> 
> and then grab a copy of the then-confidential report from 1966:
> 
> http://www.xyht.com/wp-content/uploads/2016/07/3-5-redacted-TOR-10012525-17-1-Briefing-navigation-satellite-study_Redacted.pdf 
> 
> 
> Fun reading if you're into the history of clocks & navigation. Warning: 
> the rabbit hole is very deep.
> 
> /tvb
> 

GPSWorld has a nice two part history of GPS, by Brad Parkinson, et al.


https://www.gpsworld.com/origins-gps-part-1/
https://www.gpsworld.com/origins-gps-part-2-fighting-survive/


The rabbit hole is the proverbial hole to the antipodes.

The politics of how systems like GPS come to be is as interesting (to 
some) as the technical details.