{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:ZRZXRQWU4YZCWIZJEDJKOPWNL4","short_pith_number":"pith:ZRZXRQWU","schema_version":"1.0","canonical_sha256":"cc7378c2d4e6322b232920d2a73ecd5f0ab0d30ba1aa5b6b8682585666cee0ce","source":{"kind":"arxiv","id":"1610.00070","version":3},"attestation_state":"computed","paper":{"title":"Radial Velocity Retrieval for Multichannel SAR Moving Targets with Time-Space Doppler De-ambiguity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","math.IT"],"primary_cat":"cs.IT","authors_text":"Jia Xu, Li Xiao, Teng Long, Xiang-Gen Xia, Zhi-Rui Wang, Zu-Zhen Huang","submitted_at":"2016-10-01T01:39:15Z","abstract_excerpt":"In this paper, with respect to multichannel synthetic aperture radars (SAR), we first formulate the problems of Doppler ambiguities on the radial velocity (RV) estimation of a ground moving target in range-compressed domain, range-Doppler domain and image domain, respectively. It is revealed that in these problems, a cascaded time-space Doppler ambiguity (CTSDA) may encounter, i.e., time domain Doppler ambiguity (TDDA) in each channel arises first and then spatial domain Doppler ambiguity (SDDA) among multi-channels arises second. Accordingly, the multichannel SAR systems with different parame"},"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":"1610.00070","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-10-01T01:39:15Z","cross_cats_sorted":["cs.CV","math.IT"],"title_canon_sha256":"f59448d4681bcae86a1994ded8f1b32d961193422c1cfb69d02889b89b8b4a76","abstract_canon_sha256":"2c12746cf0559d6b21f119d6000ad1ed1c4ceb77b2a196bc90fd7ec2f6d73fce"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:39.342010Z","signature_b64":"lMIsejZN4psUThkw28yo2EFKHlYvZczK0na57wQe+H/Ws+ozcuvbhFsMm0Y89rGfetKSxWSUVjH4pnkDXb+4CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc7378c2d4e6322b232920d2a73ecd5f0ab0d30ba1aa5b6b8682585666cee0ce","last_reissued_at":"2026-05-18T00:42:39.341268Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:39.341268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Radial Velocity Retrieval for Multichannel SAR Moving Targets with Time-Space Doppler De-ambiguity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","math.IT"],"primary_cat":"cs.IT","authors_text":"Jia Xu, Li Xiao, Teng Long, Xiang-Gen Xia, Zhi-Rui Wang, Zu-Zhen Huang","submitted_at":"2016-10-01T01:39:15Z","abstract_excerpt":"In this paper, with respect to multichannel synthetic aperture radars (SAR), we first formulate the problems of Doppler ambiguities on the radial velocity (RV) estimation of a ground moving target in range-compressed domain, range-Doppler domain and image domain, respectively. It is revealed that in these problems, a cascaded time-space Doppler ambiguity (CTSDA) may encounter, i.e., time domain Doppler ambiguity (TDDA) in each channel arises first and then spatial domain Doppler ambiguity (SDDA) among multi-channels arises second. Accordingly, the multichannel SAR systems with different parame"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.00070","kind":"arxiv","version":3},"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":"1610.00070","created_at":"2026-05-18T00:42:39.341426+00:00"},{"alias_kind":"arxiv_version","alias_value":"1610.00070v3","created_at":"2026-05-18T00:42:39.341426+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.00070","created_at":"2026-05-18T00:42:39.341426+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZRZXRQWU4YZC","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZRZXRQWU4YZCWIZJ","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZRZXRQWU","created_at":"2026-05-18T12:30:55.937587+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/ZRZXRQWU4YZCWIZJEDJKOPWNL4","json":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4.json","graph_json":"https://pith.science/api/pith-number/ZRZXRQWU4YZCWIZJEDJKOPWNL4/graph.json","events_json":"https://pith.science/api/pith-number/ZRZXRQWU4YZCWIZJEDJKOPWNL4/events.json","paper":"https://pith.science/paper/ZRZXRQWU"},"agent_actions":{"view_html":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4","download_json":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4.json","view_paper":"https://pith.science/paper/ZRZXRQWU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1610.00070&json=true","fetch_graph":"https://pith.science/api/pith-number/ZRZXRQWU4YZCWIZJEDJKOPWNL4/graph.json","fetch_events":"https://pith.science/api/pith-number/ZRZXRQWU4YZCWIZJEDJKOPWNL4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4/action/storage_attestation","attest_author":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4/action/author_attestation","sign_citation":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4/action/citation_signature","submit_replication":"https://pith.science/pith/ZRZXRQWU4YZCWIZJEDJKOPWNL4/action/replication_record"}},"created_at":"2026-05-18T00:42:39.341426+00:00","updated_at":"2026-05-18T00:42:39.341426+00:00"}