GNSS

The System: Autumn Falls Back

November 1, 2013By
Delta IV, the current GPS launch vehicle, awaits a date with space at Cape Canaveral.

Launch Delays Ground GPS IIF and Galileo FOC The scheduled October 23 launch of GPS IIF-5, the fifth in the current “follow-on” generation of GPS satellites, has been postponed in order to complete a review of an adjustment made to the rocket’s upper stage engine. A loss of thrust by a Delta IV rocket upper stage during a GPS launch last... read more

Innovation: Hunting for GNSS Echoes

November 1, 2013By
Figure 1. ARTEMISA simulation platform architecture.

Analysis of Signal Tracking Techniques for Multipath Mitigation
Researchers involved with ARTEMISA describe their efforts to generate synthetic multipath of GPS L1 and Galileo E1 signals and to test different signal tracking techniques in a simulated receiver to see which techniques best minimize the effects of multipath on positioning solutions. read more

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

The Halloween Storms: When Solar Events Spooked the Skies

October 30, 2013By
ssn_predict_l-O

Ten years ago, scientists watching the skies experienced a Halloween fright of cosmic proportions, when space weather degraded GPS signals, affecting land and ocean surveys, and commercial and military aircraft navigation. The most extreme of what became known as the Halloween Storms hit on October 30, 2003 — ten years ago today. According to the National Oceanic and Atmospheric Agency,... read more

Real-Time GNSS Activities at ESA

October 28, 2013By
The ESA Navigation Office.

The European Space Operations Centre has taken on the roles of real-time analysis center, data provider, and analysis-center coordinator for the International GNSS Service’s Real-Time Service, providing a number of products combining data streams from multiple sources. read more

This article is tagged with and posted in Augmentation & Assistance, Featured Stories, From the Magazine, Galileo

GPS IIF-5 Launch Delayed

October 22, 2013By

The scheduled October 23 launch of GPS IIF-5, the fifth in the current “follow-on” generation of GPS satellites, has been postponed in order to complete a review of an adjustment made to the rocket’s upper stage engine. A fuel leak in that engine of the Delta 4 rocket during a GPS launch in October of last year created some worries... read more

Orolia to Supply Atomic Clocks for Galileo Satellites

October 17, 2013By
Passive hydrogen maser.

Orolia has finalized the contracts to supply Rubidium atomic clocks (Rubidium Atomic Frequency Standard, RAFS) and passive hydrogen masers to equip eight satellites for Galileo’s Full Operational Capability Phase II program. The two new contracts, totaling 14.5 million euros, follows the authorization to proceed received in June 2012 for the manufacture of these two types of high-precision clocks. Oriola brands... read more

This article is tagged with , and posted in GNSS News, Latest News, Mobile/Wireless, Timing

Averna Emulator Receives Four-Diamond Ranking from Cable Industry

October 15, 2013By

Averna, developer of test solutions and services for communications and electronics device-makers worldwide, today announced it has received a Broadband Technology Report (BTR) Diamond Technology Review ranking of 4 “Diamonds” for its DOCSIS Channel Emulator (DCE). Now in its ninth year, the BTR Diamond Technology Reviews is a renowned industry program that was developed to recognize some of the top... read more

This article is tagged with , and posted in Simulators & Tools

European Ground Stations Enable Galileo Search and Rescue Training

October 8, 2013By
Svalbard station on Spitsbergen in the Norwegian Arctic.

The European Space Agency’s completion of a pair of dedicated ground stations at opposite ends of Europe has enabled Galileo satellites in orbit to participate in global testing of the Cospas–Sarsat search and rescue system.The Maspalomas station, at the southern end of the largest island of the Canary Islands, at the southern fringe of European waters, was activated in June. And... read more

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