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dc.creatorSen, Mrinal K.en_US
dc.creatorBiswas, Reetamen_US
dc.creatorMandal, Prantiken_US
dc.creatorKumar, Prakashen_US
dc.date.accessioned2016-10-28T19:51:54Z
dc.date.available2016-10-28T19:51:54Z
dc.date.issued2014-12en_US
dc.identifierdoi:10.15781/T28911T44
dc.identifier.citationSen, Mrinal K., Reetam Biswas, Prantik Mandal, and Prakash Kumar. "Basis pursuit receiver function." Bulletin of the seismological society of America (Dec., 2014)en_US
dc.identifier.issn0037-1106en_US
dc.identifier.urihttp://hdl.handle.net/2152/43267
dc.description.abstractReceiver functions (RFs) are derived by deconvolution of the horizontal (radial or transverse) component of ground motion from the vertical component, which segregates the PS phases. Many methods have been proposed to employ deconvolution in frequency as well as in time domain. These methods vary in their approaches to impose regularization that addresses the stability problem. Here, we present application of a new time-domain deconvolution technique called basis pursuit deconvolution (BPD) that has recently been applied to seismic exploration data. Unlike conventional deconvolution methods, the BPD uses an L1 norm constraint on model reflectivity to impose sparsity. In addition, it uses an overcomplete wedge dictionary based on a dipole reflectivity series to define model constraints, which can achieve higher resolution than that obtained by the traditional methods. We demonstrate successful application of BPD based RF estimation from synthetic data for a crustal model with a near-surface thin layer of thickness 5, 7, 10, and 15 km. The BPD can resolve these thin layers better with much improved signal-to-noise ratio than the conventional methods. Finally, we demonstrate application of the BPD receiver function (BPRF) method to a field dataset from Kutch, India, where near-surface sedimentary layers are known to be present. The BPRFs are able to resolve reflections from these layers very well.en_US
dc.description.sponsorshipJackson Chair funds at the Jackson School of Geosciences, University of Texas, Austinen_US
dc.description.sponsorshipCouncil of Scientific and Industrial Research twelfth five year plan project at the Council of Scientific and Industrial Research National Geophysical Research Institute (CSIR-NGRI), Hyderabaden_US
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectwave-formsen_US
dc.subjectbody wavesen_US
dc.subjectdeconvolutionen_US
dc.subjectinversionen_US
dc.subjectdecompositionen_US
dc.subjectcomputationen_US
dc.subjectearthquakeen_US
dc.subjectgeochemistry & geophysicsen_US
dc.titleBasis Pursuit Receiver Functionen_US
dc.typeArticleen_US
dc.description.departmentInstitute for Geophysicsen_US
dc.rights.restrictionOpenen_US
dc.identifier.doi10.1785/0120140004en_US
dc.contributor.utaustinauthorSen, Mrinal K.en_US
dc.contributor.utaustinauthorBiswas, Reetamen_US
dc.relation.ispartofserialBulletin of the Seismological Society of Americaen_US


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