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Military Receivers: Air Force Wants Foreign GNSS Capability

Rockwell Collins DAGR. From Wikimedia Commons

The GPS Directorate wants industry to more quickly develop innovative user equipment that integrates both the modernized GPS signals and signals from international constellations like Galileo.

“In the future,” said the organization’s new director, Col. Steve Whitney, “it’s going to be important that our industry partners and the Directorate investigate ways to pull in these new signals — and that includes some of the non-GPS signals — into our user equipment.”

By Inside GNSS

September 15, 2015

GNSS Hotspots | September 2015

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859

1996 soccer game in the Midwest, (Rick Dikeman image)

Nouméa ground station after the flood

A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat

Bonus Hotspot: Naro Tartaruga AUV

Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)

“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto

The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.

Detail of Compass/ BeiDou2 system diagram

Hotspot 6: Beluga A300 600ST

1. I LOVE MY JOB BUT…
Bakersfield, California USA

By Inside GNSS

NavtechGPS Fall Mission Critical GNSS Seminars (Courses 122, 346 & 556)

Falls Church, Virginia, c. 1861

NavtechGPS Fall Mission Critical GNSS Training Seminars 2015 will take place at the Westin Tysons Corner Hotel in Falls Church, Viginia (Washington, D.C. area), November 2-6, 2015.

Special hotel rate if booked by October 12, 2015.

Course 556 starts on November 2, 2015. Courses 122 and 346 will start on November 3, 2015.

By Inside GNSS

September 10, 2015

GAO: OCX Problems Threaten GPS Constellation

A new federal watchdog report released yesterday (September 9, 2015) questions the outlook for the still-developing GPS ground control system saying the Pentagon may not fully understand the true cause of ongoing problems in a program where further delays “may likely pose significant risks to sustaining the GPS constellation and delivering GPS capability.”

By Inside GNSS

September 9, 2015

Webinar: Cutting-Edge Applications of Unmanned Systems

The incorporation of GNSS and inertial technologies is helping drive an explosion of systems development and applications of unmanned systems. On Tuesday, September 29, Inside GNSS and NovAtel will present a FREE 90-minute web seminar showcasing some of these applications, including the use of remote sensing technologies to assess pest populations in commercial crops and to conduct infrastructure inspections, with the aid of air and ground vehicles.

Register now for Tuesday, September 29, 2015: 9 am PDT

By Inside GNSS

DoT Hastens GNSS Receiver Testing for Adjacent Band Compatibility Assessment

Federal officials have released a draft of their plan to determine the amount of interference satellite navigation receivers can tolerate from users in neighboring frequencies. The tests, proposed after the Federal Communications Commission (FCC) froze a controversial wireless broadband system, would accelerate research on GNSS receivers that process signals from multiple satellite constellations.

By Inside GNSS

September 7, 2015

John Raquet: A Family Affair

John and his wife, Cindy.

John Raquet’s Compass Points

With an imposing 6’2” physique and a disarming grin, John Raquet rises above the crowd. To colleagues he’s a top-flight engineer and university professor, and director of the Air Force Institute of Technology (AFIT) Autonomy and Navigation Technology Center. But he is also a former all-star basketball player, a preacher, sometime soccer coach, former military officer, and, most definitely, a family man.

By Inside GNSS

GPS Confidential

Ubiquitous location-aware mobile devices, mainly GPS-enabled smartphones, have led to a boom in location-based services (LBS), which have been revolutionizing businesses and lifestyles. Common uses of LBSs include asset tracking, location-based advertising, emergency roadside service, turn-by-turn navigation, and real-time traffic & road information sharing.

By Inside GNSS

Urban Localization and 3D Mapping Using GNSS Shadows

It is by now well known that GNSS-based localization in built-up urban environments can be extremely inaccurate. This is a fundamental problem that hardware enhancements cannot solve.

A GNSS receiver estimates 3D location and timing from pseudoranges from four or more satellites, assuming that these pseudoranges correspond to direct line-of-sight (LOS) paths from each satellite. In urban canyons, however, the signal from a satellite to the receiver suffers from multipath propagation and shadowing.

By Inside GNSS

Single Antenna, Dual Use

A GNSS single-antenna system can be compared to a single-pixel camera. Electromagnetic waves traveling 20,000 kilometers from every overhead direction can reach us. Yet once at the antenna, this diverse set of information is collapsed into a single magnitude and phase value, then sent off to the receiver so that value can be extracted.

By Inside GNSS

New Fiscal Year Begins with Unfinished GPS Business

Most folks look to a new year as an opportunity for fresh starts and new projects. For the GPS community, however, the October 1 start of the 2016 federal fiscal year (FY16) will likely be more about the hangover — that is, the issues that are hanging over into the next 12 months, unresolved.

At the top of that list of unfinished business are two system decisions: a go/no-go determination on whether the United States will build eLoran as the U.S. backup to GPS and deciding whether or not to choose a new contractor for the GPS III program.

By Dee Ann Divis

September 2, 2015

GNSS User Meet 2015

The GNSS User Meet 2015 will be jointly hosted at the ISRO Satellite Centre in Bengaluru by the Indian Space Research Organisation (ISRO) and the Airports Authority of India on the theme, “Towards Self Reliance in Satellite Navigation."The technical program will include plenary talks, paper presentations, poster sessions, and panel discussions.

Participation is invited from the GNSS user community, including various government departments, academia, GNSS receiver manufacturers, research laboratories, and so forth.

By Inside GNSS

August 31, 2015

U.S. Army Adopts PreTalen PANACEA for GPS Receiver Testing

The U.S. Army has adopted PreTalen Ltd’s PANACEA as its principal test asset supporting the Army’s positioning, navigation, and timing (PNT) System of Systems Architecture (SoSA) testing of GPS receivers.

By Inside GNSS

GPS

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Military Receivers: Air Force Wants Foreign GNSS Capability

GNSS Hotspots | September 2015

NavtechGPS Fall Mission Critical GNSS Seminars (Courses 122, 346 & 556)

GAO: OCX Problems Threaten GPS Constellation

Webinar: Cutting-Edge Applications of Unmanned Systems

DoT Hastens GNSS Receiver Testing for Adjacent Band Compatibility Assessment

John Raquet: A Family Affair

GPS Confidential

Urban Localization and 3D Mapping Using GNSS Shadows

Single Antenna, Dual Use

New Fiscal Year Begins with Unfinished GPS Business

GNSS User Meet 2015

U.S. Army Adopts PreTalen PANACEA for GPS Receiver Testing