{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:PFEE577C23ETAYBZKKIJDROHHU","short_pith_number":"pith:PFEE577C","schema_version":"1.0","canonical_sha256":"79484effe2d6c9306039529091c5c73d3b1a7e7bb6a6b384abb022851884aa43","source":{"kind":"arxiv","id":"2403.09301","version":1},"attestation_state":"computed","paper":{"title":"CRB Analysis for Mixed-ADC Based DOA Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Jun Liu, Xiaolei Shang, Xinnan Zhang, Yuanbo Cheng","submitted_at":"2024-03-14T11:49:14Z","abstract_excerpt":"We consider a mixed analog-to-digital converter (ADC) based architecture consisting of high-precision and one-bit ADCs with the antenna-varying threshold for direction of arrival (DOA) estimation using a uniform linear array (ULA), which utilizes fixed but different thresholds for one-bit ADCs across different receive antennas. The Cram{\\'e}r-Rao bound (CRB) with the antenna-varying threshold is obtained. Then based on the lower bound of the CRB, we derive the asymptotic CRB of the DOA, which depends on the placement of mixed-ADC. Our analysis shows that distributing high-precision ADCs evenly"},"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":"2403.09301","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-03-14T11:49:14Z","cross_cats_sorted":[],"title_canon_sha256":"747693f48270a15e1bce2a47ef890353a637e60dddcb687da78374c481d4ed9e","abstract_canon_sha256":"98213b238f2972adc4699bb1f7035b15710af66b4daf8e10329a4180096b798f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:56:08.335717Z","signature_b64":"dQm4iE42j/Kv46rnv+fkDoD0ow6HFpbuTkIKs/JAPmjzJY0SeIP1NacJUDce/+fem5Hf0gURD/AUfbnuCDaeAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79484effe2d6c9306039529091c5c73d3b1a7e7bb6a6b384abb022851884aa43","last_reissued_at":"2026-07-05T07:56:08.335226Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:56:08.335226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"CRB Analysis for Mixed-ADC Based DOA Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Jun Liu, Xiaolei Shang, Xinnan Zhang, Yuanbo Cheng","submitted_at":"2024-03-14T11:49:14Z","abstract_excerpt":"We consider a mixed analog-to-digital converter (ADC) based architecture consisting of high-precision and one-bit ADCs with the antenna-varying threshold for direction of arrival (DOA) estimation using a uniform linear array (ULA), which utilizes fixed but different thresholds for one-bit ADCs across different receive antennas. The Cram{\\'e}r-Rao bound (CRB) with the antenna-varying threshold is obtained. Then based on the lower bound of the CRB, we derive the asymptotic CRB of the DOA, which depends on the placement of mixed-ADC. Our analysis shows that distributing high-precision ADCs evenly"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09301","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.09301/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2403.09301","created_at":"2026-07-05T07:56:08.335286+00:00"},{"alias_kind":"arxiv_version","alias_value":"2403.09301v1","created_at":"2026-07-05T07:56:08.335286+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09301","created_at":"2026-07-05T07:56:08.335286+00:00"},{"alias_kind":"pith_short_12","alias_value":"PFEE577C23ET","created_at":"2026-07-05T07:56:08.335286+00:00"},{"alias_kind":"pith_short_16","alias_value":"PFEE577C23ETAYBZ","created_at":"2026-07-05T07:56:08.335286+00:00"},{"alias_kind":"pith_short_8","alias_value":"PFEE577C","created_at":"2026-07-05T07:56:08.335286+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/PFEE577C23ETAYBZKKIJDROHHU","json":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU.json","graph_json":"https://pith.science/api/pith-number/PFEE577C23ETAYBZKKIJDROHHU/graph.json","events_json":"https://pith.science/api/pith-number/PFEE577C23ETAYBZKKIJDROHHU/events.json","paper":"https://pith.science/paper/PFEE577C"},"agent_actions":{"view_html":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU","download_json":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU.json","view_paper":"https://pith.science/paper/PFEE577C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2403.09301&json=true","fetch_graph":"https://pith.science/api/pith-number/PFEE577C23ETAYBZKKIJDROHHU/graph.json","fetch_events":"https://pith.science/api/pith-number/PFEE577C23ETAYBZKKIJDROHHU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU/action/storage_attestation","attest_author":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU/action/author_attestation","sign_citation":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU/action/citation_signature","submit_replication":"https://pith.science/pith/PFEE577C23ETAYBZKKIJDROHHU/action/replication_record"}},"created_at":"2026-07-05T07:56:08.335286+00:00","updated_at":"2026-07-05T07:56:08.335286+00:00"}