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GNSS (all systems)

NovAtel GNSS Engineer Shares in Record Wingsuit Jump
October 16, 2012

NovAtel GNSS Engineer Shares in Record Wingsuit Jump

Andrew Levson points out his position in record-setting wingsuit formation. Photo by Shannon Levson

One hundred skydivers from 21 different countries set multiple records for a wingsuit formation last month, jumping out of five separate planes above Perris Valley in southern California. The jump has been submitted to Guiness World records.

Among the divers was Andrew Levson, an applications engineer for NovAtel, Inc., whose research endeavors with a GNSS-equipped wingsuit was chronicled for an Inside GNSS cover feature in the January/February 2012 issue.

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By Inside GNSS
GNSS Augmentations
October 15, 2012

GNSS Augmentations

Dr. Todd Walter, Stanford University

Contrary to a widely held public impression, the elimination of GPS Selective Availability in 2000 did not take care of the needs that many users have for enhanced GNSS capabilities.

Indeed, various “augmentations” have been developed to meet the requirements of some applications for better accuracy, availability, or integrity (the assurance of the quality of a signal) than are available from GNSS signals in space.

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By Inside GNSS
Trimble Introduces Next Generation GNSS Survey, Datalink, Mapping Solutions
October 12, 2012

Trimble Introduces Next Generation GNSS Survey, Datalink, Mapping Solutions

Trimble R10 rover

Trimble has introduced its next-generation GNSS surveying solution — the Trimble R10, a small, lightweight receiver that introduces new features and technologies, including Trimble HD-GNSS, Trimble SurePoint, Trimble 360, and Trimble xFill, to provide increased productivity.

Announced at the Intergeo 2012 conference in Hannover, Germany, this week, introduction of the Trimble R10 was accompanied by new versions of its field and office software — Trimble Access 2012.20 and Trimble Business Center 2.80 to extend Trimble’s Connected Site survey solution.

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By Inside GNSS
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What’s Happening at ION GNSS 2012
September 20, 2012

What’s Happening at ION GNSS 2012

ION GNSS 2012 ienjoyed clear skies and warm temperatures at the Nashville Convention Center in Tennessee. The U.S. Institute of Navigation-sponsored venerable conference closed on Friday, September 21. 

Thursday’s workshops featured expanded discussion on China’s Compass/Beidou-2 and Europe’s  Galileo. Two more Beidou MEO satellites were launched during the conference for a total of 15. Meanwhile, Europe plans an October 10 launch that will bring the total to four. Speakers "guaranteed a 30 satellite constellation by 2020."

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By Inside GNSS
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2012 Trimble International User Conference
September 12, 2012

2012 Trimble International User Conference

Trimble Dimensions, the 2012 International User Conference, will take place at the Mirage Hotel in Las Vegas, Nevada from November 5 to 7.

Early-bird pricing has been extended to September 14.

The annual event targets surveying, engineering, construction, mapping, GIS, geospatial, infrastructure, utilities and field service management professionals who use positioning products developed and sold by Trimble companies. The companies include: Accubid, Applanix, Meridian Systems, OmniStar, Pacific Crest, PeopleNet, Plancal, QuickPen and Tekla.

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By Inside GNSS
CSNC 2013: China Satellite Navigation Conference
September 7, 2012

CSNC 2013: China Satellite Navigation Conference

"BeiDou Applications – Opportunities and Challenges" is the subject of the 2013 China Satellite Navigation Conference to be held in Wuhan, China on May 15, 16 and 17, 2013.The event will be held at the Wuhan International Conference & Exhibition Center (696 Jiefang Road, Hankou, Wuhan, China).

It is sponsored by the China Satellite Navigation Office and a number of other official PRC agencies.

The official language of the conference is Chinese with simultaneous English translation.

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By Inside GNSS
Vector Delay Lock Loops
September 3, 2012

Vector Delay Lock Loops

GNSS receivers determine their position and clock bias by measuring the arrival times of satellite signals. Delay lock loops (DLLs) are used in traditional receivers to measure the arrival times of the signals.

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By Inside GNSS
Improving GNSS Attitude Determination

Improving GNSS Attitude Determination

This article describes an integration of a single-frequency GNSS, two-antenna heading system with low-cost inertial and magnetic field sensors in order to improve the availability and reliability of pure GNSS attitude determination. This method calculates a redundant attitude solution in an error-state Kalman filter using different sensor setups. As a result, the process of carrier phase ambiguity resolution accelerates.

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By Inside GNSS
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