Global Navigation Satellite Systems Engineering, Policy, and Design
“The future of navigation is inertial plus . . . some other sensor,” states Michael Braasch at the opening of this month’s webinar. “One sensor suite determines position, velocity and attitude.”
By Inside GNSS
Two new all-silicon inertial measurement systems, developed to meet the specific demands of the small satellite and launch vehicle markets, have been released by Silicon Sensing Systems Ltd, and are on display at this month’s Space Tech Expo in Bremen, Germany.
By Inside GNSS
The Department of Transportation (DOT) selected 11 firms to demonstrate technologies that could be used to back up the services provided by GPS should GPS signals be jammed, spoofed or unavailable.
By Dee Ann Divis The complex and mission-critical needs of the autonomous vehicle market demand innovation at higher levels in several different sensors and in sensor integration. A new photonic chip technology offers promise in providing high-volume, low-cost manufacture of high-end, tactical-grade performance fiber-optic gyros (FOGs)for inertial navigation in GNSS-obstructed environments.
By Inside GNSS
The grapevine was abuzz on Halloween with chatter that the Federal Communications Commission (FCC) might soon act on a long-pending request from Ligado Networks to use spectrum near the GPS frequencies to support terrestrial communications.
By Dee Ann Divis
Researchers at the Universität der Bundeswehr München (German Federal Armed Forces University, Munich) have performed real-time kinematic (RTK) positioning with dual-frequency smartphones, using the GNSS raw measurements to the user via the Android API.
By Inside GNSS
The GPS III Contingency Operations Program (COps) successfully connected with the first GPS III satellite on orbit on October 21. The Air Force can now operationally command and control the powerful new GPS III satellites
By Inside GNSS
Direct georeferencing improves the efficiency and accuracy of mapping from both manned and unmanned platforms. An upcoming 2-day workshop on this topic is designed for:
By Inside GNSS
The European GNSS Agency (GSA) has just issued its sixth annual GNSS Market Report, a booklet that comprehensively runs down the major market sectors and gives gratifying growth figures for all of them. This is not news, strictly speaking. This is more of the same that we have seen over the last two decades, the last six years of which have been quantified in the sturdy GSA Market Reports.
By Inside GNSS
The Cyclone Global Navigation Satellite System (CYGNSS) constellation operated by the U.S. National Aeronautics and Space Administration (NASA) consists of eight miniature satellites that use GPS signals bounced off the sea surface to measure wind speeds. One after the other at 12-minute intervals, the satellites pass over tropical storms, gathering data that can be used to predict the storms’ path and their intensity.
By Inside GNSS
Ivan Revnivykh’s life and experience encompass the far frontiers of his homeland, Russia, from the magnifi cent landscapes of the country’s Pacifi c coast to research stations in Antarctica, to the great capital city of Moscow where he lives and works today. To everything he does he brings a sense of excitement and adventure.
By Inside GNSS
Every GNSS has experienced a failure. On January 26, 2016, an error in the GPS data upload system caused incorrect data to be transmitted from the satellites on the L1 band used by most commercial GPS receivers. Th e problem was resolved within six hours, although some users experienced problems for as much as twelve hours. Th e next day, the US Air Force (USAF) released a full statement explaining that the problem was caused by ground system soft ware when one satellite was decommissioned.
By Inside GNSS
Seventeen years after federal regulators restricted a promising wireless technology to protect GPS and other spectrum users, they are being asked to loosen those limitations. Ultra-Wide Band (UWB) proponents insist the strictures are too tight and cut off their ability to innovate. In June, Robert Bosch LLC formally requested the Federal Communications Commission (FCC) do what it said it would do back in April 2002: reexamine controls on UWB that the FCC itself called “extremely conservative” when they were written. The request is not to change the rules—not just yet anyway—but for the FCC to launch a rulemaking process that could eventually lead to changes in the rules. And Bosch wants a lot of changes.
By Inside GNSSNovAtel’s Annual Journal of GNSS Technology Solutions and Innovation
