Imperial College London
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Professor Tom Pike

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Microengineering
 
 
 
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Contact

 

+44 (0)20 7594 6207w.t.pike

 
 
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Location

 

604Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Sollberger:2019:10.1109/CAMSAP45676.2019.9022439,
author = {Sollberger, D and Garcia, R and Giardini, D and Grott, M and Haag, T and Hudson, TL and Lognonne, P and Pierick, JT and Pike, W and Spohn, T and Stahler, SC and Schmelzbach, C and Zweifel, P and Andersson, F and Robertsson, JOA and Kedar, S and Banerdt, WB and Brinkman, N and Clinton, J and Van, Driel M},
doi = {10.1109/CAMSAP45676.2019.9022439},
pages = {376--380},
title = {Sparse Reconstruction of Aliased Seismic Signals Recorded during the Insight Mars Mission},
url = {http://dx.doi.org/10.1109/CAMSAP45676.2019.9022439},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - The NASA InSight lander successfully placed a seismometer on the surface of Mars. Alongside, a hammering device was deployed that penetrated into the ground to attempt the first measurements of the planetary heat flow of Mars. The hammering generated repeated seismic signals that were registered by the seismometer. These signals can potentially be used to image the shallow subsurface just below the lander. However, the frequencies excited by the hammering probe widely exceed the Nyquist frequency dictated by the seis-mometer's sampling rate. Here, we propose an algorithm to reconstruct the seismic signals beyond the classical sampling theorem. 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. This allows us to reconstruct signals by enforcing a sparsity constraint in a modified Radon transform domain.
AU  - Sollberger,D
AU  - Garcia,R
AU  - Giardini,D
AU  - Grott,M
AU  - Haag,T
AU  - Hudson,TL
AU  - Lognonne,P
AU  - Pierick,JT
AU  - Pike,W
AU  - Spohn,T
AU  - Stahler,SC
AU  - Schmelzbach,C
AU  - Zweifel,P
AU  - Andersson,F
AU  - Robertsson,JOA
AU  - Kedar,S
AU  - Banerdt,WB
AU  - Brinkman,N
AU  - Clinton,J
AU  - Van,Driel M
DO  - 10.1109/CAMSAP45676.2019.9022439
EP  - 380
PY  - 2019///
SP  - 376
TI  - Sparse Reconstruction of Aliased Seismic Signals Recorded during the Insight Mars Mission
UR  - http://dx.doi.org/10.1109/CAMSAP45676.2019.9022439
ER  -
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