The cross correlation of ambient signal allows seismologists to collect data even in the
absence of seismic events.“Seismic interferometry” shows that the cross correlation of …

The term seismic interferometry refers to the principle of generating new seismic responses
by crosscorrelating seismic observations at different receiver locations. The first version of …

Classical seismological receiver functions are correlational or deconvolutional combinations
of vertical and horizontal component seismometer recordings of earthquake waves that …

In the 1990s, the method of time-reversed acoustics was developed. This method exploits
the fact that the acoustic wave equation for a lossless medium is invariant for time reversal …

Inverse scattering, Green's function reconstruction, focusing, imaging and the optical
theorem are subjects usually studied as separate problems in different research areas. We …

Seismic body waves that sample Earth's core are indispensable for studying the most
remote regions of the planet. Traditional core phase studies rely on well‐defined earthquake …

The extraction of the response from field fluctuations excited by random sources has
received considerable attention in a variety of different fields. We present three methods for …

Correlation or convolution of recordings of diffuse fields at a pair of locations have been
shown to result in estimates of the Green's function between the two locations. Variously …

Land seismic data are contaminated by surface waves (or ground roll). These surface waves
are a form of source-generated noise and can be strongly scattered by near-surface …

The passive surface wave method, as a valid supplement to the active survey method for the
deeper imaging, has gained growing attentions from geophysicists and civil engineering …