Abstract: To address the problem of high complexity of channel estimation for orthogonal time frequency space (OTFS) systems, we propose a low complexity channel estimation method leveraging the ...

High up in Earth's orbit, millions of human-made objects large and small are flying at speeds of over 15,000 miles per hour. The objects, which range from inactive satellites to fragments of equipment ...

Each rocket launch consumes large amounts of valuable materials and releases significant quantities of greenhouse gases and ozone-depleting chemicals into the atmosphere. In a paper published today ...

The Pentagon announced on Friday that Defense Secretary Pete Hegseth met with the U.S. Space Command Commander General Stephen Whiting to discuss the relocation of the entity. President Trump ...

For nine months in 2022, moss lived in space. It wasn’t in a lab aboard the International Space Station, like other gardening experiments conducted in orbit — rather, the moss was attached to the ...

Without a fully reusable Starship there will not be large scale AI Data Centers in space. SpaceX has to bring the cost of flying a SpaceX Starship below $80 million per flight. SpaceX will likely be ...

As artificial intelligence drives the need for vastly more computing storage and processing power, interest in space-based data centers has spiked. Although several startup companies, such as ...

It is not easy to make collective sense of democracy in America at this moment. On the one hand, many of the institutions that have long anchored our system of ordered liberty remain in place, e.g., ...

Advances in artificial intelligence are driving surging demand for data centers. But these warehouse-like facilities, containing computers that process and store data, require a lot of land and huge ...

PARIS — Space has become a war-fighting domain, an assessment that calls for doctrinal changes and the ability to intervene there more quickly, space-force leaders from several NATO countries said at ...

Abstract: Wideband beamforming serves as a critical signal processing technology in applications such as wireless communications, radar, and sonar systems. However, conventional tapped delay-line ...