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high precision positioning

August 1, 2008

GIOVE-B Signal Observations Confirm MBOC’s Multipath Advantage

Standard deviation of code multipath for Galileo signals transmitted by GIOVE-B. The two thicker lines show the L1BC modulations: BOC(1,1), light green, and CBOC (dark green).

Initial results from observations of the Galileo GIOVE-B satellite conducted by researchers at the European Space Agency (ESA) and Septentrio Satellite Navigation indicate that the multiplex binary offset carrier (MBOC) modulation outperforms the BOC(1,1) modulation on the L1 (data + pilot channels) frequency in mitigating the effects of multipath or reflected signals.

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By Glen Gibbons
May 27, 2008

Topcon Draws on GNSS Expertise to Build Leadership

Recent leadership appointments at Topcon Positioning Systems (TPS) reflect the company’s efforts to expand its focus from being a vendor of equipment for surveying, civil engineering, and construction to a broad-spectrum provider of positioning solutions drawing heavily on GNSS-based technologies.

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By Glen Gibbons
May 7, 2008

Applanix Launches POS AV with Integrated Trimble GNSS, Upgraded DSS RapidOrtho

Applanix has announced the availability of a high altitude tactical mapping option for its DSS RapidOrtho system as well as the integration of the Trimble BD960 GNSS receiver module for its POS AV airborne position and orientation system.

With the GNSS module, POS AV products now support GPS L1/L2 and GLONASS L1/L2 processing, both in real-time and post-mission. The BD960 will also be able to receive and process the next-generation GPS L2C and L5 signals.

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By Inside GNSS
May 1, 2008

Hemisphere GPS Reports Record Revenues, Profits in First Quarter

Hemisphere GPS has reported US$25.9 million in revenues for the first quarter of 2008, an increase of 56 percent from the year-earlier period (US$16.7 million) and a record for the company.

The company also reported record first quarter net income of $5.8 million, or $0.11, an increase of 169 percent compared to $2.2 million, or $0.05 per share, in the first quarter of 2007.

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By Glen Gibbons
April 16, 2008

NovAtel Offers GL1DE Technology for Precision Ag Guidance

NovAtel Inc. has launched its new GL1DE technology, the latest enhancement to the Calgary, Alberta, Canada–based company’s high-precision OEMV GNSS product line.

GL1DE is a relative pseudorange/delta-phase filter enhancement available in the coompany’s OEMV 3.400 firmware. The new technology is targeted for agricultural guidance applications in which pass-to-pass repeatability and elimination of position “jumps” is critical.

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By Glen Gibbons
April 14, 2008

Hemisphere GPS Announces Eclipse Developer Kit

Hemisphere GPS has released an OEM development kit for its Eclipse dual-frequency GPS receiver technology.

Development kits allow product designers and system integrators to more easily access and test all of the available features on an Eclipse board, simplifying the effort needed to reach a proof of concept and shortening the time required to bring a product to market.

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By Glen Gibbons
March 6, 2008

Astrium-Allsat JV Launches GNSS Reference Network Services across Europe


Astrium Services and Allsat GmbH network+services have created a joint venture, AXIO-NET GmbH, to offer precise navigation and positioning services across Europe.

The companies, which formed a JV in September 2007 to operate the German ascos service, have created a trans-European brand — AXIO-NET  — to extend the service, based on a network of reference stations that generate high-accuracy differential corrections of GPS and GLONASS satellite signals.

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By Glen Gibbons
November 26, 2007

Trimble Snares USCG DGPS Contract; NDGPS Imperiled

Even as the fate of the inland portions of the Nationwide Differential GPS (NDGPS) reference network hangs in the balance, the U.S. Coast Guard (USCG) has awarded a contract to Trimble for up to 400 high-accuracy GPS reference receivers.

The Trimble NetRS reference receivers will be installed over the next three years as part of the coast guard’s modernization of the Maritime DGPS Service, which is not part of the NDGPS elements that being considered for termination.

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By Glen Gibbons