{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:QJ2GPNIYNFKXBQ2GQT7JM7QLXK","short_pith_number":"pith:QJ2GPNIY","schema_version":"1.0","canonical_sha256":"827467b518695570c34684fe967e0bba987b82ad1c52743ba95510281b058b24","source":{"kind":"arxiv","id":"0909.0885","version":1},"attestation_state":"computed","paper":{"title":"High-resolution modal analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.data-an","authors_text":"Bertrand David (LTCI), Kerem Ege (LMS), Xavier Boutillon (LMS)","submitted_at":"2009-09-04T14:25:29Z","abstract_excerpt":"Usual modal analysis techniques are based on the Fourier transform. Due to the Delta T . Delta f limitation, they perform poorly when the modal overlap mu exceeds 30%. A technique based on a high-resolution analysis algorithm and an order-detection method is presented here, with the aim of filling the gap between the low- and the high-frequency domains (30%<mu<100%). A pseudo-impulse force is applied at points of interests of a structure and the response is measured at a given point. For each pair of measurements, the impulse response of the structure is retrieved by deconvolving the pseudo-im"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0909.0885","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2009-09-04T14:25:29Z","cross_cats_sorted":[],"title_canon_sha256":"9fd227581b7fc31011ee0009f9f12a9c79da6622a45a9eb89610c7bc8bf67d25","abstract_canon_sha256":"cfd0aa3152ba97e49df6717ad4d49a6e9ee18dcce38a48b2f8cfb724ea0b0202"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:08:16.123666Z","signature_b64":"6vee/+3Er2cZm/be6QKp9Hx2rf9eCFTsPqHgcC0biCBwmd6E+qkuCoRW2v1teWbWetij2pUqu9e1hdNkWF75Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"827467b518695570c34684fe967e0bba987b82ad1c52743ba95510281b058b24","last_reissued_at":"2026-05-18T03:08:16.123167Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:08:16.123167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-resolution modal analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.data-an","authors_text":"Bertrand David (LTCI), Kerem Ege (LMS), Xavier Boutillon (LMS)","submitted_at":"2009-09-04T14:25:29Z","abstract_excerpt":"Usual modal analysis techniques are based on the Fourier transform. Due to the Delta T . Delta f limitation, they perform poorly when the modal overlap mu exceeds 30%. A technique based on a high-resolution analysis algorithm and an order-detection method is presented here, with the aim of filling the gap between the low- and the high-frequency domains (30%<mu<100%). A pseudo-impulse force is applied at points of interests of a structure and the response is measured at a given point. For each pair of measurements, the impulse response of the structure is retrieved by deconvolving the pseudo-im"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0885","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"0909.0885","created_at":"2026-05-18T03:08:16.123235+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.0885v1","created_at":"2026-05-18T03:08:16.123235+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0885","created_at":"2026-05-18T03:08:16.123235+00:00"},{"alias_kind":"pith_short_12","alias_value":"QJ2GPNIYNFKX","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"QJ2GPNIYNFKXBQ2G","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"QJ2GPNIY","created_at":"2026-05-18T12:26:01.383474+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK","json":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK.json","graph_json":"https://pith.science/api/pith-number/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/graph.json","events_json":"https://pith.science/api/pith-number/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/events.json","paper":"https://pith.science/paper/QJ2GPNIY"},"agent_actions":{"view_html":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK","download_json":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK.json","view_paper":"https://pith.science/paper/QJ2GPNIY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.0885&json=true","fetch_graph":"https://pith.science/api/pith-number/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/graph.json","fetch_events":"https://pith.science/api/pith-number/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/action/storage_attestation","attest_author":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/action/author_attestation","sign_citation":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/action/citation_signature","submit_replication":"https://pith.science/pith/QJ2GPNIYNFKXBQ2GQT7JM7QLXK/action/replication_record"}},"created_at":"2026-05-18T03:08:16.123235+00:00","updated_at":"2026-05-18T03:08:16.123235+00:00"}