During the Cold War, the United States feared that rival powers could secretly test nuclear weapons underground without being ...
Abstract: Conventional frequency-scanned Brillouin optical time-domain reflectometry (BOTDR) reconstructs the Brillouin gain spectrum via step-by-step narrowband filtering, which prolongs the ...
Abstract: This paper introduces a design method for densergraph-frequency graph Fourier frames (DGFFs) to enhance graph signal processing and analysis. The graph Fourier transform (GFT) enables us to ...