Inside GNSS Media & Research

SEP-OCT 2018

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10 Inside GNSS S E P T E M B E R / O C T O B E R 2 0 1 8 A t the ESA/JRC International Summer School on GNSS in Austria last month, one of the partici- pants asked us during the evening panel — where they can address any kind of question to the lectur- ers and experts — What does satellite navigation look like in 50 and in 100 years from now? We were all quiet at first, as nobody dared to answer. en I responded: Tax authorities are cur- rently writing-off a GNSS receiver in three years. e knowledge of mankind is doubling presently in two years (compared to 100 years between 1800 and 1900). us, how can we predict how satellite navigation looks in 50 years, or only in 20 years from now? Aer a while, I tried to find a better answer for myself, just looking what is going on with respect to our global and regional satellite navigation systems and augmentations. With respect to (Satellite-Based Augmentation System) SBAS we recognize that Advanced Receiver Autonomous Integrity (ARAIM) has great poten- tial. Horizontal ARAIM may be ready around 2023 and vertical ARAIM certainly a few years later. SBAS systems are guaranteed until 2035, especially for aviation. And aer 2035: Are the SBAS systems becoming obsolete? Let's look around more. 5G wireless networks are coming in the coming years. e standardiza- tion process for the first release incorporating 5G capabilities has been completed in June 2018 with the 3GPP Release 15. 5G technology might repre- sent a new mobile revolution in the wireless land- scape, with many new mission-critical services and positioning applications. Among the main targets you'll find the Internet of things (IoT) and ultrafast enhanced mobile broadband using millimeter waves and small cells. Will this produce a competitor to our GNSS? Or might the number of GNSS applica- tions decrease? Or, more likely, we'll see a hybridiza- tion GNSS/5G to develop. And what about New Space, formerly known as alt/alternate space? Although there is no unique definition, it is certainly a movement and new phi- losophy, encompassing a globally emerging, private spaceflight and aerospace industry which is more socio-economically-oriented. In other words, work- ing commercially and independent of governmental- funded (political) space programs with a faster, cheaper and better access to space. Examples for such systems in the near future might be the low-earth orbit (LEO) systems with many hundreds or even thousands of mini-satellites mainly dedicated for communication and inter- net. OneWebb and SpaceX Starlink/Samsung are presently being built-up (see FIGURES 1 and 2 ). On the aerospace industry side, the company SpaceX is an example for New Space. But, can those LEO systems be used for satellite positioning and navigation? THINKING ALLOWED Satellite Navigation and New Space GUENTER HEIN FOR INSIDE GNSS FIGURE 1 : ONE WEB • Constellation: 648 sats • Should enable broadband access for every school in the world • Affordable worldwide internet access • 2018 10 sats • Completed 2022 … 2027 FIGURE 2: SPACEX STARLINK, SAMSUNG • Constellation: > 4000 sats • Worldwide broadband internet • 2 experimental sats (Tintin A & B) launched 22 February 2018 by SpaceX

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