GPS Archives - Page 19 of 138 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

GPS

February 5, 2020

Details Emerge On Ligado Decision Delay

The chairman of the Federal Communications Commission (FCC) told two U.S. Senators in January that his agency could not complete a decision on Ligado Network’s license modification by the end of 2019 because of a late-in-the-year response from a key federal agency.

Read More >

By Dee Ann Divis
[uam_ad id="183541"]
January 26, 2020

What freeware or open-source software packages are available to support GNSS performance evaluations?

In the years since civil and commercial use of GPS and GNSS became common in the mid-1990s, a variety of software tools have been developed to perform offline analyses of GNSS performance and data collected from GNSS receivers. Some of these tools are part of commercial software packages such as Matlab [1] or STK [2]. This article focuses on tools that are freely available (as of early 2020) and are standalone or work with commercial software.

Read More >

By Sam Pullen
[uam_ad id="183541"]
January 5, 2020

Low-cost GNSS/INS Integration Conquers Harsh Environments

A software-driven navigation engine makes consistent, reliable navigation possible in tunnels, garages and urban canyons.

In difficult GNSS signal environments for driving—and here urban canyons, tunnels and parking structures are the standouts—GNSS performance may be severely degraded or completely denied. Inertial aiding has become the standard for ground vehicle navigation. Requirements for autonomous navigation in these circumstances will be rigorous, but those for map-matching, telematics and fleet vehicle tracking are much less so.

Read More >

By Inside GNSS
1 17 18 19 20 21 138
IGM_e-news_subscribe