On the impact of the antenna radiation patterns in passive radio sensing

Autor: Fieramosca, Federica, Rampa, Vittorio, Savazzi, Stefano, D'Amico, Michele
Rok vydání: 2024
Předmět:
Zdroj: IEEE Antennas and Wireless Propagation Letters (Volume: 23, Issue: 2, February 2024)
Druh dokumentu: Working Paper
DOI: 10.1109/LAWP.2023.3327955
Popis: Electromagnetic (EM) body models based on the scalar diffraction theory allow to predict the impact of subject motions on the radio propagation channel without requiring a time-consuming full-wave approach. On the other hand, they are less effective in complex environments characterized by significant multipath effects. Recently, emerging radio sensing applications have proposed the adoption of smart antennas with non-isotropic radiation characteristics to improve coverage.This letter investigates the impact of antenna radiation patterns in passive radio sensing applications. Adaptations of diffraction-based EM models are proposed to account for antenna non-uniform angular filtering. Next, we quantify experimentally the impact of diffraction and multipath disturbance components on radio sensing accuracy in environments with smart antennas.
Databáze: arXiv