Global Navigation Satellite Systems Engineering, Policy, and Design
Francine Vannicola, Naval Research LaboratoryAs the forthcoming “Time and Navigation” opening next March at the Smithsonian National Air and Space Museum reminds us, modern navigation depends profoundly upon time — the more precise, accurate, and stable a navigation system’s timing is, the more precise, accurate, and stable its positioning capability.
By Inside GNSS
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Various designs of inertial/GNSS integrated navigation systems exist, with different architectures depending on the quality of sensors, the mission, the dynamics of the vehicle, and the non-linearity of the dynamics model, measurement model, or both.
By Inside GNSS
ION’s brand new event, PACIFIC PNT, brings together policy and technical leaders from the Pacific Rim for policy updates, program status and technical exchanges on positioning, navigation and timing.
Tutorials, conference and table-top exhibition will be held from Monday, April 22 through Wednesday, April 25 at the Waikiki Beach Resort and Spa in Honolulu.
The deadline for abstract submission is past.
By Inside GNSS
ESRI, major supplier of geographical information system (GIS) software, features a number of maps and apps on Hurricane Sandy on its website.
These include FEMA, Red Cross, various municipal and state maps and social networking apps on many aspects of the storm and its effects, from power outages to demographic information.
Legal filings suggest the U.S and the United Kingdom may be well on their way to working through a heated dispute over patents that, if left unresolved, could scuttle efforts to make GPS and Galileo interoperable.
By Dee Ann Divis
The Office of Naval Research (ONR) has issued a Broad Agency Announcement (ONRBAA13-002) seeking proposals from industry and academia for methods to mitigate the denial of positioning, navigation, and timing (PNT) services to U.S. naval forces.
The BAA invitation reflects anxiety about the vulnerability of GPS and overreliance of U.S. military personnel and systems on the space-based system.
By Inside GNSS
The Office of Naval Research has awarded Rockwell Collins a contract to develop technology to locate and classify an adversary’s attempts to interfere with GPS signals and disrupt military operations.
“This program will help assure that essential high accuracy navigation and timekeeping services are available to weapons platforms and military users while enabling warfighters to identify potential threats,” said John Borghese, vice-president of the Rockwell Collins Advanced Technology Center.
By Inside GNSS
Presentation of the 2012 €20,000 Galileo Master prize: (L to R)) Thorsten Rudolph, head of AZO, the contest organizers; Carlo des Dorides, head of the European GNSS Agency; winner Dirk Elias, Fraunhofer Portigal and Ulrike Daniels, AZO business development. (photo: Simone Hörmann/AZO).
The 2012 ESNC awards ceremony at der Residenz, Munich (AZO photo)Finding your way will be even easier with a new smartphone app from two Portuguese research institutes that augments GNSS with ultra-low magnetic field communication (ULF-MC) for reliable navigation in office buildings, airports, underground parking garages and other indoor locations.
By Inside GNSS
As part of ongoing research to help prevent and mitigate disruptions to computer networks on the Internet, researchers at Sandia National Laboratories’ research facility in Livermore, California, have turned their attention to handheld computing devices — including studying GPS spoofing threats to smartphones.
By Inside GNSS
University of Texas-Austin Radionavigation Lab drone used in GPS spoofing demonstrations. University of Texas photoA September report on unmanned aircraft systems (UAS) by the U.S. Government Accountability Office (GAO) highlighted the potential risks posed by GPS jamming and spoofing but failed to make any new recommendations on how the issue should be addressed. Associated privacy issues, however, have gotten more attention.
By Inside GNSS
The Federal Aviation Administration (FAA) is expected to ask its top advisors on signal interference to help map out the allowable power limits for applications using frequencies close to those used by the satellite navigation community.
By Dee Ann Divis
The GPS Directorate has approved three contracts to continue the military GPS user equipment (MGUE) development program for portable, ground-based receivers.
By Inside GNSS
At the Intergeo conference in Hannover, Germany, today, NovAtel Inc. announced the addition of a new commercially exportable single-enclosure SPAN MEMS receiver to its line of SPAN GNSS/INS products.
By Inside GNSS
