The incremental improvements in GNSS

What is the current state of GNSS, from both a constellation, augmentation and receiver perspective? Spoiler alert: it is more of an evolution than a revolution!

It is almost impossible to imagine geoinformation without GNSS nowadays. Even most geodetic services have switched to GNSS to maintain the geodetic reference network rather than using traditional optical techniques. This article explores the state of the art of GNSS, from both a constellation, augmentation and receiver perspective. Spoiler alert: it is more of an evolution than a revolution!

Global satellite navigation systems (GNSS) are everywhere. If you try to imagine geoinformation without GNSS, you will probably fail. Some people might say: ‘But what about my total station?’. But perhaps they are forgetting that most geodetic services have long since stopped surveying the control points using traditional, optical techniques and have switched to GNSS to maintain the geodetic reference network instead. So what is the current state of play when it comes to GNSS?

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Source & image credit: GIM International