Phase-Dislocation-Mediated High-Dimensional Fractional Acoustic-Vortex Communication.

ABSTRACT: With unlimited topological modes in mathematics, the fractional orbital angular momentum (FOAM) demonstrates the potential to infinitely increase the channel capacity in acoustic-vortex (AV) communications. However, the accuracy and stability of FOAM recognition are still limited by the nonorthogonality and poor anti-interference of fractional AV beams. The popular machine learning, widely used in optics based on large datasets of images, does not work in acoustics because of the huge engineering of the 2-dimensional point-by-point measurement. Here, we report a strategy of phase-dislocation-mediated high-dimensional fractional AV communication based on pair-FOAM multiplexing, circular sparse sampling, and machine learning. The unique phase dislocation corresponding to the topological char

SUBMITTER: Cao R 

PROVIDER: S-EPMC10907020 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature