Global Navigation Satellite Systems Engineering, Policy, and Design
The IEEE International Frequency Control Symposium (IFCS) will be held at The Roosevelt Hotel in New Orleans, Louisiana, U.S.A. on May 9 – 12, 2016.
By Inside GNSS
White Night, St.Petersburg, RussiaThe 23rd International Conference on Integrated Navigation Systems will take place in St. Petersburg, Russia on May 30 – June 1, 2016.
The event is being held during the lively "White Nights" tourist season, when the sun stays up until 11 p.m. or later. Guided city tours will be arranged for the participants of the Conference.
By Inside GNSS
Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe’s Galileo Operations and Evolution.
With the support of the European Space Agency (ESA), a European team designed a frequency- and time-transfer process and validated its performance in a complex navigation test bed. This two-way time-transfer technology took advantage of the following:
By Günter W. Hein
Figure 1, 3, 4 & 5Q: What is Doppler collision and is it a problem in GNSS?
A: Doppler collision is a physical effect in code-division multiple access (CDMA) systems where code measurement errors are observed due to cross-correlation effects. Doppler collision may occur when the Doppler frequency between signals from two different transmitters is smaller than the code lock loop bandwidth.
By Inside GNSS
The GPS Aided Geo Augmented Navigation (GAGAN) system was developed by the Indian Space Research Organization (ISRO), together with Airports Authority of India (AAI), to deploy and certify an operational satellite-based augmentation system (SBAS). The system’s service area covers the Indian Flight Information Region (FIR), with the capability of expanding to neighboring FIRs.
By Inside GNSS
Figures and TablesIn satellite navigation, the user receiver finds its position by measuring its distance to satellites and knowledge of the satellite position. The distance is measured by ranging, i.e., finding the delay of the signal from the transmitter to the receiver. The delay will comprise of payload hardware delay and the geometric range delay. Hence, the payload delay of the signal from generation to radiation is very important and needs to be transmitted in navigation data.
By Inside GNSS
Small GPS jammers, particularly the “personal privacy devices” readily available on the Internet, pose one of the greatest risks to the nation’s critical infrastructure, according to a now-public Homeland Security assessment.
By Dee Ann Divis
Having settled its lawsuits against a trio of GPS receiver manufacturers, would-be broadband provider New LightSquared is now pointing to those settlements to support its assertion that it is fully addressing GPS interference issues.
By Inside GNSS
Russia will host the eleventh meeting of the International Committee on GNSS (ICG) from November 6 to 11, 2016 in Sochi, on the Black Sea near Georgia. This meeting is organized by Roscosmos, the State Space Corporation. It will take place at the Pullman Sochi Center Hotel and Conference Center.
The ICG is a voluntary United Nations–backed association that brings together GNSS and augmentation providers, including the United States, Russia, European Union, China, India, and Japan.
By Inside GNSS
The sixth international conference on localization and GNSS will take place at the Universitat Autònoma de Barcelona (UAB) – Casa Convalescència, a UNESCO site, on June 28, 29 and 30 in Barcelona, Spain.
ICL-GNSS covers recent research on terrestrial and satellite-based positioning techniques to provide reliable, accurate and low latency position information with the goal of inspiring new design, implementation, test and evaluation methodologies for positioning platforms.
By Inside GNSS
The GPS Directorate at the Space and Missile Systems Center (SMC) released a request for proposals today (January 8, 2016) seeking proposals for the GPS III Space Vehicles 11+ Phase 1 Production Readiness Feasibility Assessment contract.
By Inside GNSS
NavtechGPS Spring GPS/GNSS Technical Training 2016 will take place March 14-18, at Crowne Plaza Redondo Beach Marina & Hotel in Redondo Beach, California, USA.
Registration information can be found here.
By Inside GNSS
Earthquake recovery in ChristchurchThe topic of the International Federation of Surveyors (FIG) working week 2016 is "Recovery from Disaster." It will take place at the Horncastle arena and Addington Events Centre in Christchurch, New Zealand from May 2 through May 6. Appropriately enough, Christchurch has deep familiarity with recovery from disaster after the 2010-11 earthquake sequence that took place there.
Abstract submissions are now closed.
By Inside GNSS
