Journal
APPLIED PHYSICS LETTERS
Volume 118, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0039596
Keywords
-
Categories
Funding
- French Agence Nationale de la Recherche [ANR-17-ASTR-0017]
- European Union through the European Regional Development Fund (ERDF)
- French region of Brittany through the CPER Project SOPHIE/STIC Ondes
- Rennes Metropole through the CPER Project SOPHIE/STIC Ondes
Ask authors/readers for more resources
By utilizing the configurational degrees of freedom of programmable metasurfaces, the impulse response between passive antennas in chaotic wave fields and a reverberation chamber can be retrieved via cross-correlation techniques, with potential applications in phaseless imaging for indoor context-awareness.
Programmable metasurfaces can endow complex scattering environments with reconfigurability. Here, we make use of these configurational degrees of freedom to retrieve the impulse response between two passive antennas via cross-correlation techniques. An ensemble of stirred chaotic wave fields in a reverberation chamber (RC) can play the role of thermal noise in passive Green's function retrieval. Instead of using a conventional mechanical mode stirrer, we generate the ensemble of RC configurations with random configurations of a programmable metasurface. We adapt the data processing of the diffuse field cross-correlation technique to this stirring mechanism, which is, given the size of the RC, nominally inefficient, and we investigate the convergence of the cross-correlated signals toward the impulse response. Finally, we apply our scheme to phaseless imaging in complex propagation environments, with potential applications in indoor context-awareness.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available