via Delft University of Technology
Researchers of Vrije Universiteit Amsterdam, Delft University of Technology and VSL have developed an alternative positioning system that is more robust and accurate than GPS, especially in urban settings. The working prototype that demonstrated this new mobile network infrastructure achieved an accuracy of 10 centimeter.
This new technology is important for the implementation of a range of location-based applications, including automated vehicles, quantum communication and next-generation mobile communication systems. The results were published in Nature today.
A lot of our vital infrastructure relies on global navigation satellite systems such as the US GPS and EU Galileo. Yet these systems that rely on satellites have their limitations and vulnerabilities. Their radio signals are weak when received on Earth, and accurate positioning is no longer possible if the radio signals are reflected or blocked by buildings. “This can make GPS unreliable in urban settings, for instance”, says Christiaan Tiberius of Delft University of Technology and coordinator of the project, “which is a problem if we ever want to use automated vehicles. Also, citizens and our authorities actually depend on GPS for many location-based applications and navigation devices. Furthermore, so far we had no back-up system.”
The aim of the project entitled SuperGPS was to develop an alternative positioning system that makes use of the mobile telecommunication network instead of satellites and that could be more robust and accurate than GPS. ‘We realized that with a few cutting-edge innovations, the telecommunication network could be transformed into a very accurate alternative positioning system that is independent of GPS”, says physicist Jeroen Koelemeij of VU Amsterdam. “We have succeeded and have successfully developed a system that can provide connectivity just like existing mobile and Wi-Fi networks do, as well as accurate positioning and time distribution like GPS.”
An atomic clock
One of these innovations is to connect the mobile network to a very accurate atomic clock, so that it can broadcast perfectly timed messages for positioning, just like GPS satellites do with the help of the atomic clocks they carry on board. These connections are made through the existing fiber-optic network. “We had already been investigating techniques to distribute the national time produced by our atomic clocks to users elsewhere through the telecommunication network”, says Erik Dierikx of VSL. “With these techniques we can turn the network into a nationwide distributed atomic clock – with many new applications such as very accurate positioning through mobile networks. With the hybrid optical-wireless system that we have demonstrated now, in principle anyone can have wireless access to the national time produced at VSL. It basically forms an extremely accurate radio clock that is good to one billionth of a second.”
Furthermore, the system employs radio signals with a bandwidth much larger than commonly used. “Buildings reflect radio signals, which can confuse navigation devices. The large bandwidth of our system helps sorting out these confusing signal reflections, and enables higher positioning accuracy”, Gerard Janssen of Delft University of Technology explains. “At the same time, bandwidth within the radio spectrum is scarce and therefore expensive. We circumvent this by using a number of related small bandwidth radio signals spread over a large virtual bandwidth. This has the advantage that only a small fraction of the virtual bandwidth is actually used and the signals can be very similar to those of mobile phones.”
Original Article: A navigation system with 10 centimeter accuracy
The Latest Updates from Bing News
Go deeper with Bing News on:
Alternative positioning system
- Sensus Healthcare Sells Superficial Radiotherapy System to Cape Cod Hospital
Sensus Healthcare, Inc. (Nasdaq: SRTS), a medical device company specializing in highly effective, non-invasive, minimally-invasive and cost-effective treatments for oncological and non-oncological ...
- Transportation Department seeks GPS alternatives to fortify US’s position, navigation and timing system
A new RFI seeks "technology capable of providing critical infrastructure users and operators positioning and/or timing information that is derived independently from Global Navigation Satellite ...
- Russia’s Alternative to GPS Satellites Is Outdated and Outnumbered
For the Kremlin, a homegrown global navigation satellite system offers protection against US efforts to deny Russia’s military from accessing GPS for precision-guided missiles. But while Russia has ...
- How Traders & Investors Are Positioning Themselves With Fed in Mind
Ed Egilinsky, managing director and head of sales and distribution and alternative with Direxion, joined Cheddar News to discuss how short-term traders are preparing for any forward-looking guidance f ...
- 2030, Visual Positioning System (VPS) for AR Usage Market Size | Industry Report 2023
Visual Positioning System (VPS) for AR Usage market identifies ... analysis of the manufacturing cost structure, analysis of alternative products, and information on significant distributors ...
Go deeper with Bing News on:
- Teardown: Mini GPS Jammer
If you spend enough time trolling eBay for interesting electronic devices to take apart, you’re bound to start seeing suggestions for some questionable gadgets. Which is how I recently became ...
- Centimeter-level Precision GPS For $900
[Colin] and [Fergus] have been working with GPS for years now, and like most builders of really cool things, they’re often limited by the precision of off-the-shelf GPS units. While a GPS ...
- Super PACs
Super PACs are a relatively new type of committee that arose following the July 2010 federal court decision in a case known as SpeechNow.org v. Federal Election Commission. Technically known as ...
- Super Bowl 58 Odds, Lines and NFL Futures 2023
It’s been nearly 20 years since a team won consecutive Super Bowls, but the Chiefs nonetheless opened the 2023 offseason as the favorite in the Super Bowl 58 odds, released on the top sports ...
- Usher Announces He Will Headline the 2024 Super Bowl Halftime Show — with Help from Kim Kardashian!
The singer's performance will mark his second Super Bowl appearance Nicholas Rice is a Staff Editor for PEOPLE Magazine. He began working with the brand as an Editorial Intern in early 2020 ...