Abstract: Estimation of direction-of-arrival (DOA) is a fundamental problem in array signal processing. The uniform circular array (UCA) is a highly useful array geometry for DOA estimation, ...

Learn about the EU’s plan to shift to a circular economic model to make Europe cleaner and more competitive. Subscribe to this topic See all explainers on this topic The Earth’s resources are limited.

Abstract: To address the issue of iterative Fourier transform method (IFT) easily falling into local optima in thinned array synthesis, this communication proposes a two-stage alternating iterative ...

Nvidia (NVDA) sent a memo to Wall Street analysts over the weekend arguing that it is not engaged in vendor financing, a controversial practice in which suppliers invest in or extend loans to their ...

Skeptics of a recent investment spree involving OpenAI and others say deals raise questions about the robustness of the artificial intelligence boom. By Andrew Ross Sorkin Bernhard Warner Sarah ...

Global Navigation Satellite Systems (GNSS), including GPS, GLONASS, Galileo, and BeiDou, have become indispensable for a wide range of applications such as navigation, surveying, and timing ...

Students call it hypocritical. A senior at Northeastern University demanded her tuition back. But instructors say generative A.I. tools make them better at their jobs. By Kashmir Hill In February, ...

Rana Hajirasouli is a Ph.D. Researcher at the University of Cambridge and Founder of The Surpluss (Certified B Corp). The circular economy has long been heralded as an important pathway to sustainable ...