Global Navigation Satellite Systems Engineering, Policy, and Design
Multipath is a major phenomenon that degrades the integrity of GNSS-based navigation services. Under multipath, a receiver Delay-Lock Loop (DLL) does not correctly estimate the actual peak of the correlation curve, resulting in ranging errors. To overcome this effect, mitigation techniques have been developed, a detailed discussion of which
By Inside GNSS
The HG4930 is designed to meet the motion sensing needs of a range of applications across various markets. Photo courtesy of Honeywell Aerospace.Long established as a key component within defense applications, navigation technology from Honeywell is now available to a wide range of new industries that can benefit from the advanced precision and performance of reliable, rugged and easy-to-install Inertial Measurement Units (IMUs).
By Inside GNSS
Senate lawmakers have introduced a bi-partisan bill giving the Department of Transportation (DoT) responsibility for launching a GPS timing backup and a two-year deadline to get it up and running.
By Inside GNSS
Completing the fourth delivery of 10 navigation payloads for Lockheed Martin’s GPS III satellites, Harris Corporation delivered the advanced navigation payload for the fourth GPS III Space Vehicle (SV04) to Lockheed Martin on October 29 – establishing a proven and reliable production cadence. Harris delivered two payloads in 2017 and is committed to delivering four more in 2018.
By Inside GNSS
Close to 300 users attended the 1st Galileo User Assembly, held in Madrid, Spain on November 28-29. The users, along with several expert presenters, came together for the first EGNSS User Consultation Platform to share their experience, discuss their needs and provide feedback on Galileo performance, one year after the launch of Galileo Initial Services.
By Inside GNSS
UPDATE: Today’s the day. Check back to the Inside GNSS website for updates on today’s launch.
A European Ariane 5 rocket followed dual rail tracks across the Guiana Space Center in South America on Monday on the way to its launch complex Monday, a day before today’s scheduled blastoff with four satellites to expand the Galileo navigation network. Also, you can follow the launch live at Spaceflight.com.
By Inside GNSS
The Institute of Navigation’s (ION) Cognizant Autonomous Systems for Safety Critical Applications Workshop (CASSCA) features well-recognized experts and leaders from government, industry, and academia.
By Inside GNSS
The Army is kicking off a wide-ranging, five-year research effort to develop new position, navigation and timing (PNT) technologies for battlefield use.
The goal is to overcome technical barriers in a wide range of areas and military officials are offering to fund multiple, and even multi-phase, cost-plus-fixed-fee (CPFF) efforts to do that. The work may range from studies and analysis to development work that results in the production of a prototype-style deliverable or breadboard and/or a demonstration.
By Dee Ann Divis
A highly anticipated presentation by Ligado Networks to the nation’s leading satellite navigation experts took an unexpected turn when the company said it could not provide essential network information because it was looking to the government for technical direction and its business plans were still in flux.
By Dee Ann Divis
Figures 1 – 6, Table 1There are many good reasons for getting excited about highly automated vehicles, or HAVs, which is the acronym used by the National Highway Traffic Safety Administration (NHTSA). HAVs can make driving more fuel- and time-efficient. They can significantly reduce traffic congestion and emissions by driving a precise speed, minimizing lane changes, and maintaining an exact distance to neighboring cars. They can also increase accessibility and mobility for disabled and elderly persons.
By Inside GNSS
Example of IEEE 1588 Timing Synchronization Module in Centralized Architecture. Image courtesy of Microsemi.
The Position Location and Navigation Symposium (PLANS) is a biennial technical conference that occurs in the spring of even numbered years. Our mission is to provide a forum to share the latest advances in navigation technology. Read about the history of PLANS here.
By Inside GNSS
