GNSS

ION Seeks Abstracts for Pacific PNT 2015, PTTI Registration Opens

September 2, 2014By

Abstract submissions are now being accepted for The Institute of Navigation’s (ION) Pacific PNT Conference, to be held April 20-23, 2015, at the Waikiki Beach Marriott, Honolulu, Hawaii. Abstracts are due November 14, 2014. Pacific PNT, where “East Meets West in the Global Cooperative Development of Positioning, Navigation and Timing Technology,” brings together policy and technical leaders from Japan, Singapore, China, South... read more

Innovation: How Deep Is That White Stuff?

September 1, 2014By
FIGURE 6. Aerial view of the forested site (RN86) around the GPS antenna (marked with a circle).

Using GPS Multipath for Snow-Depth Estimation
In this month’s column, we look at a technique that uses interference fringes generated by signals arriving at an antenna directly from GPS satellites and those reflected by snow surrounding the antenna to measure its depth and how it varies over time. GPS for measuring snow depth; who would have thought? read more

This article is tagged with and posted in Algorithms & Methods, Innovation

Multi-Constellation. Dual-Frequency. Single-Chip.

September 1, 2014By
NAPA-OpeningFigure

This integrated circuit supports simultaneous reception and processing of the GPS L1/L5, Galileo E1/E5a, and GLONASS G1 signals with 40 tracking channels. The dual-band analog RF front-end is integrated on the same mixed-signal chip as the baseband hardware, including an embedded processor to close the tracking loops: overall, a compact, low-power, and low-cost solution. read more

This article is tagged with , , and posted in From the Magazine, Receiver Design

Assured PNT for Our Future: PTA

September 1, 2014By
GDGPS-Parkinson-O

Actions Necessary to Reduce Vulnerability and Ensure Availability By Brad Parkinson (From the 25th Anniversary GNSS History Special Supplement) Introduction About 40 years ago, we had a vision for positioning, navigation, and timing (PNT). That vision was more than successful, and became known as GPS. In some respects we have been almost too successful: PNT is frequently taken for granted.... read more

IGS Launches New Website

August 28, 2014By

The International GNSS Service (IGS) has launched a new website. Knowledge-base sections have been created for IGS Working Groups to maintain content for public access. The site administrators ask Working Group chairs to provide updated content to their sections. Other sections include IGS Real-Time Service, IGS Presents (videos), IGS Multi-GNSS Experiment, news and events. Because content has been extensively reorganized with this... read more

This article is tagged with , and posted in GNSS News, Latest News, Survey

Galileo 5 and 6 Operating Smoothly Despite Wrong Orbit

August 28, 2014By

Galileo satellites 5 and 6 are safely under control, despite having been released on a lower and elliptical orbit instead of the expected circular orbit on August 22. Each satellite’s set of solar arrays is fully deployed and generating power, and operations continue smoothly. The European ground teams deployed at the European Space Agency’s (ESA)  control centre ESOC in Darmstadt, Germany, in cooperation with satellite... read more

This article is tagged with and posted in Galileo, GNSS News, Latest News

Canadian Science Minister Announces Grant to Langley’s UNB Lab

August 26, 2014By
Professor Langley (center) discusses the UNB geodesy program with Canadian Science Minister Ed Holder (second from left.)

The Canadian Minister of State for science and technology, Ed Holder, visited the University of New Brunswick on July 28 to announce the awarding by the Natural Sciences and Engineering Council of $2.4 million to 28 UNB researchers. He was joined by Keith Ashfield, member of Parliament for Fredericton, where UNB is based, and Craig Leonard, the New Brunswick Minister... read more

Inquiry Commission Appointed Following Galileo Anomaly

August 25, 2014By
The medium-lift workhorse has been raised into a vertical orientation as the mobile gantry  is moved into position.

Following the major anomaly that occurred on August 22 during the Soyuz ST mission carrying two satellites in the Galileo constellation, Arianespace announced today, in conjunction with the European Space Agency (ESA) and the European Commission, the appointment of an independent inquiry commission. The commission is chaired by Peter Dubock, former ESA Inspector General. Its mandate is to establish the circumstances of the anomaly, to... read more