GNSS: Evolution or Revolution

GNSS: Evolution or Revolution

The market for Global Navigation Satellite Systems (GNSS) has never looked so buoyant. Are we in the midst of a revolution or simply witnessing evolution pre-planned and destined t...

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Continuous Mobile Laser Scanning

Continuous Mobile Laser Scanning

Combining Terrestrial Laser Scanning, Position and Orientation Systems and GPS receivers into a mobile mapping system enables effective mapping of large and complex terrain. The au...

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Integrating GPS and SAR

Integrating GPS and SAR

Subsidence of the earth's surface caused by underground mining can be monitored using terrestrial land-survey methods. However, applying these is difficult in hilly terrain and den...

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GPS and Forestry in Japan

GPS and Forestry in Japan

Up to 70% of land in Japan is covered by forest. Since the second world war many forests have been planted with cedar and nurtured for their high productivity. However, forests ar...

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Multipath

Multipath

An electromagnetic or sound signal hitting a surface may interact with it one of three ways: the signal may be reflected, absorbed or transmitted. Having once been reflected a sig...

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Affordable Precise Positioning

Affordable Precise Positioning

GPS is good for perhaps 70% of surveying needs. Inertial Navigation is the forgotten friend of GPS. Traditionally complex and expensive, Inertial Navigation has become competitive,...

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Precise Thinking and Innovation

Precise Thinking and Innovation

Founded in 1983, NovAtel was originally a telecommunications company and since Initial Public Offering in 1997 has been a public company (NASDAQ: NGPS) entirely focused on GNSS and...

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GPS for Land Subsidence Monitoring

GPS for Land Subsidence Monitoring

Excessive groundwater extraction in the Bandung Basin has led to rapid sinking of the water table and is hypothesised as the main cause of land subsidence. Periodical GPS surveys w...

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NOAA OPUS

NOAA OPUS

Since March 2001 the National Geodetic Survey (NGS) has operated the Online Positioning User Service (OPUS) to provide end-users with easy access to the US National Spatial Referen...

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GPS-based Road Pricing

GPS-based Road Pricing

Copenhagen in Denmark has conducted an experiment in alternative driving and congestion charging using car tracking based on GPS. A main limitation of GPS is that quality depends o...

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Iranian Permanent GPS Network

Iranian Permanent GPS Network

Lying in one of the most tectonically active zones in the Alpine-Himalayan belt, Iran frequently suffers from heavy and disastrous earthquakes. To monitor surface displacement and...

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Mobile Mappers

Mobile Mappers

Mobile mappers are a recent development and their introduction demonstrates the vitality of the surveying profession. A number of leading geomatics companies accepted our invitatio...

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Geodetic GPS

Geodetic GPS

Is the moment coming when our GPS product survey will have to be renamed? Any new title should reflect the existence and use of GLONASS receivers, combined GLONASS/GPS receivers an...

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Field Area Checks Using GPS (2)

Field Area Checks Using GPS (2)

In our July issue we published the first of two articles addressing the use of GPS in agricultural field measurement, particularly in relation to EU subsidy checks. In it the autho...

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Positioning Becoming a Commodity

Positioning Becoming a Commodity

"Welcome to the future!" This was how Topcon greeted Intergeo visitors to their stand. It was impossible to overlook. So what is so special about that future? And how is...

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Positioning Becoming a Commodity

Positioning Becoming a Commodity

"Welcome to the future!" This was how Topcon greeted Intergeo visitors to their stand. It was impossible to overlook. So what is so special about that future? And how is...

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Optimal GCPs with Onboard GPS

Optimal GCPs with Onboard GPS

The collection of Ground Control Points (GCP) for block adjustment is a costly and time-consuming operation. Onboard GPS enables a reduction in the number of GCPs without loss of a...

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Field Area Checks Using GPS

Field Area Checks Using GPS

The area of agricultural fields within the European Union (EU) are checked against claims to ensure that farmers receive the right amount of subsidies. This measure, stemming from...

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GIM International - 2019 July/August issue

Your News and Views in GIM International?

Do you have an interesting idea for an article in GIM International? We are always looking for the best news and views from the geomatics industry. If you are working with the most innovative technology, have performed a challenging survey or simply want to share your perspectives on the future, please send an email to our Head of Content, Wim van Wegen: wim.van.wegen@geomares.nl. He will be more than happy to explore ways of sharing your ideas with your peers throughout the geomatics world.

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