Establishing orthometric heights using GNSS — Part 7

June 2, 2016By
Figure 1. Leveling Network Design Used in the General Adjustment of the North American Vertical Datum of 1988 (Figure 3 from the report).

Basic procedures and tools for determining valid NAVD 88 heights for constraints To date, the six parts of “Establishing Orthometric Heights Using GNSS” have provided the reader with basic concepts, routines and procedures for understanding, analyzing, evaluating and estimating GNSS-derived ellipsoid and orthometric heights. In Part 5 of this series, we discussed National Geodetic Survey’s NGS 59 guidelines and methods for evaluating the results... read more

Intergeo 2016 preview event focuses on smart cities

May 19, 2016By

Intergeo 2016 host DVW German Society for Geodesy, Geoinformation and Land Management gathered together experts from the worlds of business, public authorities and science to talk about this year’s key topic of the show: the “smart city.” Held in April at Hamburg’s Agency for Geoinformation and Surveying, the event focused on what an intelligent, digital city might look like and what... read more

Septentrio Introduces ‘future proof’ GNSS RTK technology for surveyors

May 18, 2016By

Septentrio has introduced its next-generation high-precision Altus APS3G real-time kinematic (RTK) receiver, which brings technology only previously available in scientific receivers into the field for professional surveyors. The new multi-constellation APS3G addresses major concerns about compatibility with new satellite constellations, as well as interference and jamming, according to Neil Vancans, vice president of Septentrio Americas. Built on Septentrio’s AsteRx4 engine,... read more

CHC launches high-end GNSS receiver for science, surveying

May 12, 2016By

CHC has launched its new N72 GNSS series, a high-end sensor designed for GNSS applications including offshore surveys and machine control, national geodetic networks, crustal deformation monitoring and bathymetry The N72 GNSS series is designed to offer all necessary technical features, making it one of the most complete and reliable GNSS receivers for scientific and surveying industries professionals. “To meet the market... read more

Kuwait high-rise goes up with assist from BeiDou

May 9, 2016By

CORS station tracks China’s constellation over three frequencies. Headquarters for the National Bank of Kuwait, a new 300-meter-tall building under construction, combines concrete, steel, glazing and glass-reinforced concrete in a unique shellfish shape. The engineering challenges behind this building led the engineers of Ahmadiah Company, the contractor, to use GNSS technology to install the core wall structure with millimeter accuracy.... read more

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Launchpad: Galileo-ready receivers

May 5, 2016By

OEM: Galileo-ready receivers Triple-frequency receiver Ready for Galileo The compact FlexPak6 receiver houses NovAtel’s OEM628 triple-frequency plus L-band GNSS receiver board. It tracks all current and future GNSS constellations, with a highly configurable interface designed to meet current and future positioning and integration needs. The FlexPak6 is a GPS and GLONASS receiver that is also Galileo and Compass ready. Upgradable receiver... read more

This article is tagged with and posted in Mapping, OEM, Product Showcase, Survey, Transportation, UAV/UGV

GNSS and the real-time network: The surveyor’s best friend

May 4, 2016By
North SmaRTK GNSS RTK Receiver being used to survey the forest population in Switzerland. (Wikimedia Commons)

A lot of talk is being made about UAVs these days and how this technology is going to revolutionize many industries, with surveying being one of the biggest users. I won’t deny the impact this new tool is going to have on our profession (as written in my last column). But I don’t think it will compare to the use... read more

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Leica releases ‘self-learning’ GNSS receiver for survey

May 3, 2016By

Leica Geosystems has announced the Leica Viva GS16 survey receiver, along with updated Leica Captivate and SmartWorx Viva software. The GS16 is a “self-learning GNSS receiver,” the company said, able to automatically select the optimal combination of GNSS signals and stay connected with or without reference links. The new release enhances the Leica Captivate Experience released in 2015. The addition of... read more

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