Galileo Broadcasting Satellite Identified
The transmitting Galileo satellite is PFM, the ProtoFlight Model (GSAT0101). The FM2 (Flight Model 2) satellite (GSAT0102) has not yet started transmitting navigation signals. read more
The transmitting Galileo satellite is PFM, the ProtoFlight Model (GSAT0101). The FM2 (Flight Model 2) satellite (GSAT0102) has not yet started transmitting navigation signals. read more
On December 12, JAVAD GNSS announced that it has tracked the Galileo in-orbit validation satellite, designated PRN-11. "An important point is that we tracked it with our units that are already in the market," said Javad Ashjaee, CEO. "This is not a lab tests. Our customers can track it too." read more
Following the recent launch of two Galileo satellites, Thales Aviation of Valence, France, has successfully acquired and tracked the new L1 Open Service signal transmitted by one of them (PRN 11) with a new Galileo high-end receiver made by the company. read more
Some folks are proposing that a nationwide RTK Network (RTN) be piggy-backed on the controversial LightSquared communications network. That could be cool, if it can be done. No one is saying that it can’t be done, but there are reservations on whether it would be worth the massive investments needed to pull it off, and that there might be little gain at all over the existing presence of RTN in the U.S. read more
At the end of every year, I title this column Directions, in which I discuss significant developments, trends, technologies, companies, and so on, in the GNSS industry. This year, two entities have captured my attention and have the potential to significantly transform the GNSS industry: the FCC/LightSquared and Galileo, the European satnav system. read more
A dramatic increase over the next five years to roughly 100 GNSS satellites in the skies over Asia and Oceania makes that region the fastest growing area in GNSS. The Multi-GNSS Asia (MGA) initiative, a cooperative international demonstration campaign, seeks to take full advantage of this scientific and technical windfall, gaining early experience with the new signals and services of multi-constellation GNSS. read more
Disaster-preparedness plans recognize the individual’s role in his or her own survival. When storms approach, have water, food, and basic survival gear on hand. It takes time for help to arrive. The civil GPS industry faces an oncoming storm of interference, and the receiver is the first line of defense. As we integrate GPS into all facets of our lives and infrastructure, we become more subject to disruptions, both unintentional and intentional. Newark International Airport now sees several jamming events per day. In Taiwan, one airport experiences an average of 117 events per day! read more
Most anti-spoofing techniques are computationally complicated or limited to a specific spoofing scenario. A new approach uses a two-antenna array to steer a null toward the direction of the spoofing signals, taking advantage of the spatial filtering and the periodicity of the authentic and spoofing signals. It requires neither antenna-array calibration nor a spoofing detection block, and can be employed as an inline anti-spoofing module at the input of conventional GPS receivers. read more
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