English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The passive estimation of impulse responses from ambient noise correlationsarouses increasing interest in seismology, acoustics, optics andelectromagnetism. Assuming the equipartition of the noise field, thecross-correlation function measured with non-invasive receiving probesconverges towards the difference of the causal and anti-causal Green'sfunctions. Here, we consider the case when the receiving field probes areantennas which are well coupled to a complex medium -- a scenario of practicalrelevance in electromagnetism. We propose a general approach based on thescattering matrix formalism to explore the convergence of the cross-correlationfunction. The analytically derived theoretical results for chaotic systems areconfirmed in microwave measurements within a mode-stirred reverberationchamber. This study provides new fundamental insights into the Green's functionretrieval technique and paves the way for a new technique to characterizeelectromagnetic antennas.

Diffuse field cross-correlations: scattering theory and electromagnetic experiments