{"id":389,"date":"2014-06-24T09:15:38","date_gmt":"2014-06-24T09:15:38","guid":{"rendered":"http:\/\/ahay.org\/blog\/?p=389"},"modified":"2015-08-04T23:51:28","modified_gmt":"2015-08-04T23:51:28","slug":"fast-elastic-mode-separation-in-anisotropic-media","status":"publish","type":"post","link":"https:\/\/ahay.org\/blog\/2014\/06\/24\/fast-elastic-mode-separation-in-anisotropic-media\/","title":{"rendered":"Fast elastic mode separation in anisotropic media"},"content":{"rendered":"<p>A new paper is added to the <a href=\"\/wiki\/Reproducible_Documents\">collection of reproducible documents<\/a>:<br \/>\n<a href=\"\/RSF\/book\/tongji\/lrmode\/paper_html\/\">Fast algorithms for elastic-wave-mode separation and vector decomposition using low-rank approximation for anisotropic media<\/a><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/RSF\/book\/tongji\/lrmode\/twolayer3dtti\/Fig\/ElasticPInterf.png\" alt=\"\" width=\"323\" height=\"326\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"\/RSF\/book\/tongji\/lrmode\/twolayer3dtti\/Fig\/ElasticSVInterf.png\" alt=\"\" width=\"323\" height=\"326\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"\/RSF\/book\/tongji\/lrmode\/twolayer3dtti\/Fig\/ElasticSHInterf.png\" alt=\"\" width=\"323\" height=\"326\" \/><\/p>\n<blockquote><p>Wave mode separation and vector decomposition are significantly more expensive than wavefield extrapolation and are the computational bottleneck for elastic reverse-time migration (ERTM) in heterogeneous anisotropic media. We express elastic wave mode separation and vector decomposition for anisotropic media as space-wavenumber-domain operations in the form of Fourier integral operators, and develop fast algorithms for their implementation using their low-rank approximations. Synthetic data generated from 2D and 3D models demonstrate that these methods are accurate and efficient.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>A new paper is added to the collection of reproducible documents: Fast algorithms for elastic-wave-mode separation and vector decomposition using low-rank approximation for anisotropic media Wave mode separation and vector decomposition are significantly more expensive than wavefield extrapolation and are the computational bottleneck for elastic reverse-time migration (ERTM) in heterogeneous anisotropic media. We express elastic [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-389","post","type-post","status-publish","format-standard","hentry","category-documentation"],"_links":{"self":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/comments?post=389"}],"version-history":[{"count":1,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/389\/revisions"}],"predecessor-version":[{"id":526,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/389\/revisions\/526"}],"wp:attachment":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/media?parent=389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/categories?post=389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/tags?post=389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}