Abstract: To address the problem of effectively extracting multi-modal features from the non-stationary vibration signals of aero-engines, this paper proposes a lightweight multimodal fault diagnosis ...

Mars Sample Return is stalled as costs rise while China’s Tianwen-3 targets a 2031 return. Learn why this matters for science ...

Abstract: In this paper, we propose a nested sampling based off-grid block sparse representation method (Nested-OGBSR) for time-delay estimation (TDE) of coherent ground penetrating radar (GPR) ...