{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7LD5NJOSQ62K24HKPOS2VCI76H","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b8371cf98b9e1aaf119a55332037cfe23ff639988f9f5d803c05c3dfbe948fd2","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-02-12T19:15:24Z","title_canon_sha256":"7195eb492c77372a9027c6cd0cd718f08ba12910f8b9300e4c01bf3b2aad8a45"},"schema_version":"1.0","source":{"id":"1402.2936","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.2936","created_at":"2026-05-18T02:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"1402.2936v3","created_at":"2026-05-18T02:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.2936","created_at":"2026-05-18T02:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"7LD5NJOSQ62K","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7LD5NJOSQ62K24HK","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7LD5NJOS","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:0f680ebb9540f8817cb3b7a0fac1aade9586d05eb30fb57714d5af7b756f440b","target":"graph","created_at":"2026-05-18T02:30:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"High-resolution parameter estimation algorithms designed to exploit the prior knowledge about incident signals from strictly second-order (SO) non-circular (NC) sources allow for a lower estimation error and can resolve twice as many sources. In this paper, we derive the R-D NC Standard ESPRIT and the R-D NC Unitary ESPRIT algorithms that provide a significantly better performance compared to their original versions for arbitrary source signals. They are applicable to shift-invariant R-D antenna arrays and do not require a centrosymmetric array structure. Moreover, we present a first-order asy","authors_text":"Florian Roemer, Giovanni Del Galdo, Jens Steinwandt, Martin Haardt","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-02-12T19:15:24Z","title":"R-dimensional ESPRIT-type algorithms for strictly second-order non-circular sources and their performance analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.2936","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:850f1b1df7dfe5a081124e07fae36cbed1ce1df6c89a8c82ad21056f34000e97","target":"record","created_at":"2026-05-18T02:30:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b8371cf98b9e1aaf119a55332037cfe23ff639988f9f5d803c05c3dfbe948fd2","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-02-12T19:15:24Z","title_canon_sha256":"7195eb492c77372a9027c6cd0cd718f08ba12910f8b9300e4c01bf3b2aad8a45"},"schema_version":"1.0","source":{"id":"1402.2936","kind":"arxiv","version":3}},"canonical_sha256":"fac7d6a5d287b4ad70ea7ba5aa891ff1ff2f93f9beb2a52c19e2c730a1c185d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fac7d6a5d287b4ad70ea7ba5aa891ff1ff2f93f9beb2a52c19e2c730a1c185d4","first_computed_at":"2026-05-18T02:30:01.222911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:01.222911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iYtXu7GmddYId9R66iJgmT43G5BEe+40phXn0Keej1C+wPL3OLWHf0ohdh1TSpTYqX0bQpQmEKfQaQdZeNjBCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:01.223282Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.2936","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:850f1b1df7dfe5a081124e07fae36cbed1ce1df6c89a8c82ad21056f34000e97","sha256:0f680ebb9540f8817cb3b7a0fac1aade9586d05eb30fb57714d5af7b756f440b"],"state_sha256":"741329087edecadc7414ce2ea4d8ee0b3c18b56de0cac5a695fc72196bf77cf5"}