CNES and Geoflex sign agreement on satellite positioning

August 22, 2016By

French Space Agency CNES has signed a cooperation agreement with the company Geoflex, granting it the right to spin off software developed by CNES that employs satellite precise point positioning (PPP) technology. Under the agreement, CNES is granting Geoflex a license to use its patented technologies in this field with a view to offering a global commercial operational service. This... read more

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Tallysman expands geodetic antenna line

June 6, 2016By

Tallysman, a manufacturer of high-performance GNSS antennas, has introduced two additions to its VeraPhase line of precision antennas. The VP6300 is a triple-band antenna for reception of GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2 and Galileo E1/E5a+b (1165MHz to 1254MHz + 1560MHz to 1610MHz). The VP6200 is a dual-band antenna for reception of GPS L1/L2, GLONASS G1/G2, BeiDou B1/B2, Galileo E1... read more

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Veripos extends Apex service, offers Quantum software

March 24, 2016By

Veripos, a global supplier of high-precision GNSS positioning services to the offshore oil and gas industries, has extended its ranges of proprietary software with the introduction of Quantum, a new, all-purpose suite of visualization modules providing a state-of-the-art user interface to support next-generation services and features. Designed to operate with all current Veripos positioning options including its latest Apex5 multi-constellation... read more

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Innovation: Guidance for road and track

January 14, 2016By
FIGURE 2. SF-PPP solution displayed on a 5-centimeter accurate road infrastructure map, on Dec. 18, 2014.

Real-time single-frequency precise point positioning for cars and trains
In this month’s Innovation column, we bring together, perhaps for the first time, single-frequency and real-time PPP. Our authors describe a series of experiments they have conducted on roadways and a railway achieving sub-meter horizontal positioning at a 95 percent confidence interval. Such accuracies may already be sufficient for freeway lane and railway track guidance. But we might expect even better accuracies in the future. After all, PPP is getting better all the time. read more

PPP for hydrography

December 15, 2015By

A new high-accuracy technique using one dual-frequency GNSS receiver, precise point positioning (PPP) offers the possibility of cost-effectively obtaining coordinates. This study investigates the accuracy of kinematic PPP for hydrographic applications on rivers, and shows results comparable to double-difference solutions. read more

A Scintillating Project

August 1, 2015By
Setting up the receiver antenna for the offshore trial on board the Geograph vessel.

Countering Ionospheric Disturbances Affecting GNSS in Brazil By Marcio Aquino After 27 months of intense research, the CALIBRA project ended successfully in February 2015, with the project team devising solutions to tackle the effects of perturbations typical of the Brazilian ionosphere on high-accuracy GNSS positioning. CALIBRA was funded by the European Union and the European GNSS Agency. Kicked off in 2012, CALIBRA first confirmed the vulnerability of... read more

UNB’s PPP Software Centre v2.0 Beta Now Available

June 17, 2015By

The PPP Software Centre, an email-based Online PPP comparison utility hosted by the University of New Brunswick, is once again functioning with its release of version 2.0 Beta following an extended hiatus while being rewritten. The centre is a convenient method for the GNSS community to compare results from several online precise point positioning services. For a more detailed description, including submission instructions, see the homepage at http://www2.unb.ca/gge/Resources/PPP/. Note that... read more

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