Heterogeneous Spacecraft Networks (HSNs) are network environments in which spacecraft from different missions and institutions can communicate with each other at a low cost and with low impact on overall system resources. The technology of heterogeneous wireless networks has yet to be extended to space networks,...

The 2013 SAE World Congress and Exhibition, taking place April 16-18 at Cobo Center in Detroit, represents an unparalleled opportunity to explore new technology through both technical sessions and the Innovators Only Exhibition. This year’s Host Company is Chrysler, and ZF will serve as Tier...

A computer program uses data from more than 1,000 Global Positioning System (GPS) receivers in an Internetaccessible global network to generate daily estimates of the global distribution of vertical total electron content (VTEC) of the ionosphere. This program supersedes an older program...

Real-Time Net Transfer (RTNT) software allows for efficient and reliable transport of raw, GPS (Global Positioning System) observables over the open Internet. Efficiency is achieved by editing and compressing the GPS observables at the remote site, and by using User Datagram...