ST Engineering iDirect Achieves World’s First Live MF-TDMA Demo


Reading time ( words)

ST Engineering iDirect announced the successful completion of the first Over-the-Air (OTA) testing of iDirect’s Multi-Frequency Time Division Multiple Access (MF-TDMA) return link on the Telesat Phase-1 Low Earth Orbit (LEO) satellite. The milestone achievement demonstrated dynamic sharing of bandwidth among multiple terminals within a LEO constellation, a capability that extends the capacity and flexibility of Telesat’s multi-beam beam hopping architecture, and opens up a wide range of use cases for Telesat’s LEO customers in the commercial, government, and defense markets for land, land-mobile, aeronautical, maritime, and other applications.

The testing was conducted at Telesat’s Allan Park facility and featured ST Engineering iDirect’s VSAT platform networked across multiple satellite modems. The iDirect platform was able to compensate fully for the LEO satellite link dynamics, including time, frequency, signal variation and Doppler effects. Short guard times (the time intervals required between radio bursts to prevent self-interference) were achieved, comparable in length to guard times used on GEO satellite links, without compromising capacity or spectral efficiency.

The ability to leverage MF-TDMA to efficiently share bandwidth on satellite ground-to-space links improves the capacity, performance and affordability of broadband services delivered over LEO satellite constellations.

To put the link to the test, the team conducted a video conference with engineers at Allan Park and achieved seamless connectivity, low jitter and low packet loss, resulting in a high Quality of Experience (QoE) that exceeded the level typically achieved over GEO satellite networks.

“This is a significant success for the ST Engineering iDirect and Telesat teams,” said Bart Van Poucke, Vice President of Product Management at ST Engineering iDirect. “We have achieved the benefits of MF-TDMA efficiency whilst unlocking the low latency offered by LEO satellites. This demonstration confirms the wide addressable market for LEO and particularly for applications that require mission-critical communications. We are proud to have been part of these tests and thank Telesat for the opportunity.”

“Satellite service providers are eager to take advantage of Telesat LEO’s affordable, low latency, high-speed connectivity to deliver secure Internet, VPN, video conferencing and cloud applications to their customers,” stated Erwin Hudson, Telesat’s Vice President of LEO. “I congratulate the ST Engineering iDirect engineering team on their successful testing campaign. They demonstrated the powerful advantages that MF-TDMA brings to LEO networks, a capability that can provide increased flexibility and higher capacity for our customers while allowing us to support a greater number of end users on each LEO satellite.”

ST Engineering North America is the U.S. headquarters of ST Engineering, a global technology, defense and engineering group specializing in the aerospace, electronics, land systems, and marine sectors. Based in Alexandria, VA, it has major operations across 17 cities in 13 states and employs about 5,500 people providing innovative products and solutions to commercial and government customers across diverse market segments.

ST Engineering iDirect, a subsidiary of ST Engineering North America, is a global leader in satellite communications (satcom) providing technology and solutions that enable its customers to expand their business, differentiate their services and optimize their satcom networks. Through the merger with Newtec, a recognized industry pioneer, the combined business unites over 35 years of innovation focused on solving satellite’s most critical economic and technology challenges and expands a shared commitment to shaping the future of how the world connects. The product portfolio, branded under the names iDirect and Newtec, represents the highest standards in performance, efficiency and reliability, making it possible for its customers to deliver the best satcom connectivity experience anywhere in the world. ST Engineering iDirect is the world’s largest TDMA enterprise VSAT manufacturer and is the leader in key industries including broadcast, mobility and military/government. In 2007, iDirect Government was formed to better serve the U.S. government and defense communities. For more information on ST Engineering iDirect platforms please visit http://www.idirect.net.

 

Share




Suggested Items

Catching Up With Alpha Circuit’s Prashant Patel

04/05/2022 | Dan Beaulieu, D.B. Management Group
There is plenty of evidence that the American PCB industry is going through a revitalization. While a few new companies are being established, others are being rejuvenated as investors gain more interest and confidence in domestic PCB companies. I reached out to Prashant Patel, owner and president of Alpha Circuit I LLC in the greater Chicago area. I wanted to hear about his investment and the unique path he took to owning a PCB shop.

James Webb Space Telescope en Route to Discover Origins of the Universe, Study Exoplanets

01/06/2022 | Thales
A joint program between NASA and its counterparts in Europe (ESA) and Canada (CSA), Webb will observe the beginnings of our Universe by reaching back in time to just a few hundred million years after the Big Bang. It will also observe exoplanets – planets outside the Solar System – that are comparable to our own, as well as the formation and evolution of stars and galaxies. The ultimate aim of this successor to the iconic Hubble space telescope is to discover galaxies that reach back to the relative beginnings of the Universe. This state-of-the-art time machine is expected to revolutionize all aspects of modern astronomy. It will unveil the hidden side of the Universe, namely stars enveloped in clouds of dust, molecules in the atmosphere of other worlds, and the light issuing from the first stars and galaxies.

DoD Faces Growing Risks from Reliance on Lead in Electronics

12/13/2021 | Chris Peters, USPAE
Like a cancer that spreads untreated until it becomes an urgent problem, the U.S. defense community is facing a small but growing problem that is increasingly undermining U.S. military readiness and technological dominance. The problem is lead—specifically, the lead-alloy solders that traditionally have been used to attach electronic components to printed circuit boards (PCBs). Over the last 15 years, the commercial electronics industry has shifted to lead-free solders, prompted by environmental health regulations in Europe and elsewhere. However, the U.S. Department of Defense (DoD) and its contractors never made the switch and are still heavily reliant on leaded solders. Now, leaded electronics are becoming harder to find and more outdated.



Copyright © 2022 I-Connect007. All rights reserved.