{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BDIHWBCVTXT6GP5PPILS7W742R","short_pith_number":"pith:BDIHWBCV","canonical_record":{"source":{"id":"1701.03898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-14T10:18:38Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"d7531b589641108eaaa48c953f4ea169b3c6a365d7d5d1059cd793d242672ea6","abstract_canon_sha256":"ebed6894913dc631a3074b1f157bca6991f8c659c6c62079cac61224fd6b651d"},"schema_version":"1.0"},"canonical_sha256":"08d07b04559de7e33faf7a172fdbfcd46e32f37f01514a05a6a691632aebf24e","source":{"kind":"arxiv","id":"1701.03898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.03898","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1701.03898v1","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.03898","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"BDIHWBCVTXT6","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDIHWBCVTXT6GP5P","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDIHWBCV","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BDIHWBCVTXT6GP5PPILS7W742R","target":"record","payload":{"canonical_record":{"source":{"id":"1701.03898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-14T10:18:38Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"d7531b589641108eaaa48c953f4ea169b3c6a365d7d5d1059cd793d242672ea6","abstract_canon_sha256":"ebed6894913dc631a3074b1f157bca6991f8c659c6c62079cac61224fd6b651d"},"schema_version":"1.0"},"canonical_sha256":"08d07b04559de7e33faf7a172fdbfcd46e32f37f01514a05a6a691632aebf24e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:48.558298Z","signature_b64":"kgj+zIHmy1oxxoWxhhl2Se3HXoOlh5hKverfHd0O2BtOkLWWDVnKi+TOhk9DiLlHbsyAGdasdJxMpruiAU+4Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08d07b04559de7e33faf7a172fdbfcd46e32f37f01514a05a6a691632aebf24e","last_reissued_at":"2026-05-18T00:52:48.557664Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:48.557664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.03898","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J3zdd08GlS5zPyieV2tpRJvbrWRm9/qMLZP36tvOgjtNJrispzecfVtj8TsQ7erAnQJm74h7fEpGD38NPkjpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:18:07.445964Z"},"content_sha256":"5994ff814a44103a8594fe3d3201683a27aa681b3b41ce0c756d2961981a09ac","schema_version":"1.0","event_id":"sha256:5994ff814a44103a8594fe3d3201683a27aa681b3b41ce0c756d2961981a09ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BDIHWBCVTXT6GP5PPILS7W742R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Performance of time delay estimation in a cognitive radar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Kumar Vijay Mishra, Yonina C. Eldar","submitted_at":"2017-01-14T10:18:38Z","abstract_excerpt":"A cognitive radar adapts the transmit waveform in response to changes in the radar and target environment. In this work, we analyze the recently proposed sub-Nyquist cognitive radar wherein the total transmit power in a multi-band cognitive waveform remains the same as its full-band conventional counterpart. For such a system, we derive lower bounds on the mean-squared-error (MSE) of a single-target time delay estimate. We formulate a procedure to select the optimal bands, and recommend distribution of the total power in different bands to enhance the accuracy of delay estimation. In particula"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.03898","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6T6A1d8ltyBUW8x1srG0XTAmSLtLdeGCRXcO06D0uyssCwNr7FDDZw6s4NZ0Mox6D5RYyqHma5kvOX3LavtjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:18:07.446304Z"},"content_sha256":"a12f0f65f951c3da8fa82fd04cad6ae8e4fb7e0b546b6f545b81e222316aa92a","schema_version":"1.0","event_id":"sha256:a12f0f65f951c3da8fa82fd04cad6ae8e4fb7e0b546b6f545b81e222316aa92a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BDIHWBCVTXT6GP5PPILS7W742R/bundle.json","state_url":"https://pith.science/pith/BDIHWBCVTXT6GP5PPILS7W742R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BDIHWBCVTXT6GP5PPILS7W742R/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-03T00:18:07Z","links":{"resolver":"https://pith.science/pith/BDIHWBCVTXT6GP5PPILS7W742R","bundle":"https://pith.science/pith/BDIHWBCVTXT6GP5PPILS7W742R/bundle.json","state":"https://pith.science/pith/BDIHWBCVTXT6GP5PPILS7W742R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BDIHWBCVTXT6GP5PPILS7W742R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BDIHWBCVTXT6GP5PPILS7W742R","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":"ebed6894913dc631a3074b1f157bca6991f8c659c6c62079cac61224fd6b651d","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-14T10:18:38Z","title_canon_sha256":"d7531b589641108eaaa48c953f4ea169b3c6a365d7d5d1059cd793d242672ea6"},"schema_version":"1.0","source":{"id":"1701.03898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.03898","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"1701.03898v1","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.03898","created_at":"2026-05-18T00:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"BDIHWBCVTXT6","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDIHWBCVTXT6GP5P","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDIHWBCV","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:a12f0f65f951c3da8fa82fd04cad6ae8e4fb7e0b546b6f545b81e222316aa92a","target":"graph","created_at":"2026-05-18T00:52:48Z","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":"A cognitive radar adapts the transmit waveform in response to changes in the radar and target environment. In this work, we analyze the recently proposed sub-Nyquist cognitive radar wherein the total transmit power in a multi-band cognitive waveform remains the same as its full-band conventional counterpart. For such a system, we derive lower bounds on the mean-squared-error (MSE) of a single-target time delay estimate. We formulate a procedure to select the optimal bands, and recommend distribution of the total power in different bands to enhance the accuracy of delay estimation. In particula","authors_text":"Kumar Vijay Mishra, Yonina C. Eldar","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-14T10:18:38Z","title":"Performance of time delay estimation in a cognitive radar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.03898","kind":"arxiv","version":1},"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":"sha256:5994ff814a44103a8594fe3d3201683a27aa681b3b41ce0c756d2961981a09ac","target":"record","created_at":"2026-05-18T00:52:48Z","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":"ebed6894913dc631a3074b1f157bca6991f8c659c6c62079cac61224fd6b651d","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-01-14T10:18:38Z","title_canon_sha256":"d7531b589641108eaaa48c953f4ea169b3c6a365d7d5d1059cd793d242672ea6"},"schema_version":"1.0","source":{"id":"1701.03898","kind":"arxiv","version":1}},"canonical_sha256":"08d07b04559de7e33faf7a172fdbfcd46e32f37f01514a05a6a691632aebf24e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08d07b04559de7e33faf7a172fdbfcd46e32f37f01514a05a6a691632aebf24e","first_computed_at":"2026-05-18T00:52:48.557664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:48.557664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kgj+zIHmy1oxxoWxhhl2Se3HXoOlh5hKverfHd0O2BtOkLWWDVnKi+TOhk9DiLlHbsyAGdasdJxMpruiAU+4Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:48.558298Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.03898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5994ff814a44103a8594fe3d3201683a27aa681b3b41ce0c756d2961981a09ac","sha256:a12f0f65f951c3da8fa82fd04cad6ae8e4fb7e0b546b6f545b81e222316aa92a"],"state_sha256":"383877ab5fc35418f161d49041373456a3cc2df850424f4ca53f2b7e1afcce6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3FFzEQOziGhzAZbEB2DhdzCIo6EkqY7aFb8lj4mZrLFd802134lsvnFI6XtPT82hLd0WP/vBNKUQFJWBhcJpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:18:07.448375Z","bundle_sha256":"8591d30f55c1632a50cfbb4df545e30462e9ae1a76c353a040613b1258e50966"}}