A Reconstruction Algorithm for Temporally Aliased Seismic Signals Recorded by the InSight Mars Lander
dc.contributor.author
Sollberger, David
dc.contributor.author
Schmelzbach, Cédric
dc.contributor.author
Andersson, Fredrik
dc.contributor.author
Robertsson, Johan O.A.
dc.contributor.author
Brinkman, Nienke
dc.contributor.author
Kedar, Sharon
dc.contributor.author
Banerdt, William B.
dc.contributor.author
Clinton, John Francis
dc.contributor.author
van Driel, Martin
dc.contributor.author
Garcia, Raphael
dc.contributor.author
Giardini, Domenico
dc.contributor.author
Grott, Matthias
dc.contributor.author
Haag, Thomas
dc.contributor.author
Hudson, Troy L.
dc.contributor.author
Lognonne, Philippe
dc.contributor.author
ten Pierick, Jan
dc.contributor.author
Pike, William
dc.contributor.author
Spohn, Tilman
dc.contributor.author
Stähler, Simon Christian
dc.contributor.author
Zweifel, Peter
dc.date.accessioned
2021-08-17T06:24:38Z
dc.date.available
2021-08-16T07:42:08Z
dc.date.available
2021-08-17T06:24:38Z
dc.date.issued
2021-08
dc.identifier.issn
2333-5084
dc.identifier.other
10.1029/2020ea001234
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/501039
dc.identifier.doi
10.3929/ethz-b-000501039
dc.description.abstract
In December 2018, the NASA InSight lander successfully placed a seismometer on the surface of Mars. Alongside, a hammering device was deployed at the landing site that penetrated into the ground to attempt the first measurements of the planetary heat flow of Mars. The hammering of the heat probe generated repeated seismic signals that were registered by the seismometer and can potentially be used to image the shallow subsurface just below the lander. However, the broad frequency content of the seismic signals generated by the hammering extends beyond the Nyquist frequency governed by the seismometer's sampling rate of 100 samples per second. Here, we propose an algorithm to reconstruct the seismic signals beyond the classical sampling limits. We exploit the structure in the data due to thousands of repeated, only gradually varying hammering signals as the heat probe slowly penetrates into the ground. In addition, we make use of the fact that repeated hammering signals are sub-sampled differently due to the unsynchronized timing between the hammer strikes and the seismometer recordings. This allows us to reconstruct signals beyond the classical Nyquist frequency limit by enforcing a sparsity constraint on the signal in a modified Radon transform domain. In addition, the proposed method reduces uncorrelated noise in the recorded data. Using both synthetic data and actual data recorded on Mars, we show how the proposed algorithm can be used to reconstruct the high-frequency hammering signal at very high resolution.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Geophysical Union
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
A Reconstruction Algorithm for Temporally Aliased Seismic Signals Recorded by the InSight Mars Lander
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-07-16
ethz.journal.title
Earth and Space Science
ethz.journal.volume
8
en_US
ethz.journal.issue
8
en_US
ethz.pages.start
e2020EA001234
en_US
ethz.size
15 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Malden, MA
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03476 - Giardini, Domenico / Giardini, Domenico
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03476 - Giardini, Domenico / Giardini, Domenico
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
ethz.date.deposited
2021-08-16T07:42:13Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-17T06:24:49Z
ethz.rosetta.lastUpdated
2023-02-06T22:20:49Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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