Survey

Real-Time Extended GNSS Positioning: A New Generation of Centimeter-Accurate Networks

July 1, 2012By
FIGURE 2. CenterPoint RTX tracking network distribution. (Click to enlarge.)

A new method brings together advantages of real-time kinematic (RTK) and precise point positioning (PPP) in a technique that does not require local reference stations, while still providing the the high productivity and accuracy of RTK systems with the extended coverage area of solutions based on global satellite corrections. The real-time centimeter-level accuracy without reference-station infrastructure is suitable for many market segments — and is applicable to multi-GNSS constellations. read more

Expert Advice: Mobile Computing on the Rise

July 1, 2012By

This discussion of current trends in location-enabled mobile devices takes as its foundation the different operating systems (OSs) for those devices. Why? For GPS/GNSS hardware units to be useful, there have to be software applications — apps — also riding on those units. Apps are totally dependent on the operating system. An analogy is that the operating system is the foundation of a house and the app is the house itself. The type of foundation you have drives what type of house you can build. read more

This article is tagged with and posted in Expert Advice & Leadership Talks, Opinions, Survey, Survey, Survey Scene, Surveying

On the Edge: Sensing the Rivers

July 1, 2012By

A fleet of 100 robots equipped with GPS and sensors were released May 9 into California rivers to measure water flow, salinty levels, and pollution. The Floating Sensor Network is a project by the University of California, Berkeley, to improve the way water quality and flows are monitored. About two-thirds of California’s fresh water is in the Sacramento-San Joaquin river system where the test took place. This water supplies about two-thirds of the state’s population with drinking water and irrigation. The initiative is led by associate professor Alexandre Bayen at the Center for Informatin Technology Research in the Interest of Society (CITRIS). read more

This article is tagged with and posted in Mapping, Natural Resources, Surveying

LightSquared and Another FCC Issue You Should Be Aware of

June 29, 2012By

Although the LightSquared issue seems to have waned, it's like a virus in that it's really difficult to erradicate it completely. However, Harbinger Capital Partners (LightSquared's primary financial backer) and LightSquared are facing tougher problems than they have since they've started this adventure, not only from their technical foes but now from the U.S. Securities and Exchange Commission (SEC). read more

This article is tagged with and posted in Newsletter Editorials, Opinions, Survey, Survey Scene

LightSquared Bankrupt, But Spectrum Void Still Beckons

May 15, 2012By

By Alan Cameron. LightSquared, the company that mounted a powerful threat to GPS signals, declared bankruptcy on May 14, after losing a lengthy struggle in the court of the Federal Communications Commission (FCC) with the GPS industry, the U.S. military (behind the scenes), the Federal Aviation Administration, and many other GPS users. However, the vacuum into which Lightsquared sought to... read more

This article is tagged with , , and posted in Defense, GNSS, Government, Latest News, LBS/Wireless, OEM, Survey, Survey News

TomTom Launches New Global Geocoding Web Service

April 25, 2012By

At the Geospatial World Forum, TomTom announced the launch of its high volume batch geocoding web service. The TomTom Global Geocoder enables businesses to process large amounts of data with a single click of a button and return results quickly. read more

This article is tagged with and posted in Government News, Latest News, Mapping, Mapping, Survey News

The Kinematic GPS Challenge: First Gravity Comparison Results

March 14, 2012By

By Theresa Diehl The National Geodetic Survey (NGS) has issued a “Kinematic GPS Challenge” to the community in support of NGS’ airborne gravity data collection program, called Gravity for the Redefinition of the American Vertical Datum (GRAV-D). The “Challenge” is meant to provide a unique benchmarking opportunity for the kinematic GPS community by making available two flights of data from... read more

This article is tagged with , and posted in Algorithms & Methods, Opinions, Survey News, Tech Talk

How GLONASS, Galileo, and Compass Will Affect High-Precision Users

March 6, 2012By

Join GPS World's Survey and GIS Editor Eric Gakstatter March 15 for the webinar, "Everything Else but GPS: How GLONASS, Galileo, and Compass Will Affect High-Precision Users." The webinar will be held at 10 a.m. Pacific (1 p.m. ET/6 pm. GMT); registration is free. read more

This article is tagged with and posted in Newsletter Editorials, Opinions, Survey, Survey Scene