Survey

Topcon Releases High-Accuracy RTK system, HiPer SR

August 18, 2012By

Topcon Positioning Systems has unveiled the HiPer SR — an advanced GNSS RTK receiver that Topcon describes as having "the most compact and lightweight design of any fully integrated precision receiver — ever." read more

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Thoughts on GPS/GNSS from the CGSIC Meeting Held Earlier this Week

August 17, 2012By

I attended the CGSIC (Civil GPS Service Interface Committee) State and Local Government subcommittee meeting in Seattle earlier this week Following are some interesting observations you might be interested in. read more

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Trimble Expands Positions Software to Streamline Esri Workflows

August 15, 2012By

Trimble has introduced the Trimble Positions Mobile extension, a streamlined choice for integrating Trimble’s GNSS professional field solutions and data verification into the Esri ArcGIS for Windows Mobile environment. read more

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On the Edge: Mapping the Delta

August 1, 2012By

In the heart of landlocked Mali, between the Atlantic Ocean 800 miles to the south and the Sahara desert to the north, lays the extraordinary Inner Niger River Delta, also known as the Macina, a 1.8 million hectare oasis of lakes and floodplains with a vast potential for hydro agriculture. In the course of two months during the dry season, two CIRA survey teams, each equipped with three Spectra Precision ProMark 500s, a base station, and two rovers connected via UHF, completed an entire 25,000 hectare survey. read more

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Esri’s Survey Summit Showcases UAVs, 3D, the Cloud

July 30, 2012By

The Esri Survey Summit reeled in only ~250 people this year along with a roomful of exhibitors. That's not to say the content wasn't good. On the contrary, the content was very good, as it usually is, with new developments in unmanned aerial vehicles for mapping, 3D rendering technology, and cloud-based apps. read more

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Geneq Bluetooth GNSS Receiver Uses both GPS and GLONASS with SBAS

July 21, 2012By

Geneq Inc. has announced the SXBlue II GNSS, a GNSS receiver that uses both GPS and GLONASS with SBAS (WAAS/EGNOS/MSAS/GAGAN) to attain 30-cm/1-foot (RMS) accuracy in real-time using free SBAS corrections. It connects wirelessly to any smartphone, handheld, tablet computer, or notebook computer that is Bluetooth-compliant. read more

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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

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