Abstract: As a promising technology for 6G networks, ultra-massive multiple-input multiple-output (UM-MIMO) faces substantial problems such as wavefront mismatch, high computational complexity, and ...
The X logo appears on a smartphone screen. (Photo by Nikolas Kokovlis/NurPhoto via Getty Images) (NurPhoto via Getty Images) When X's engineering team published the code that powers the platform's ...
Abstract: In the near-field condition, the wavenumber spectrum exhibits spatial variance, which renders the fast factorized backprojection algorithm (FFBPA) ineffective in improving the imaging ...