{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VBVMXUD5CIX3245AAE3URNDYXB","short_pith_number":"pith:VBVMXUD5","canonical_record":{"source":{"id":"1805.03787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-05-10T02:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"2714898587fadd8ffed3b62c4911dfa9e1890357bdc0fa2933c0ab5fb208166c","abstract_canon_sha256":"213206709622951deb19529b83557e11dd25c506fec77a5994254510729502d6"},"schema_version":"1.0"},"canonical_sha256":"a86acbd07d122fbd73a0013748b478b86e7a8b61b8f17cd21e936599ea0d3f89","source":{"kind":"arxiv","id":"1805.03787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03787","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03787v1","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03787","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"VBVMXUD5CIX3","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VBVMXUD5CIX3245A","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VBVMXUD5","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VBVMXUD5CIX3245AAE3URNDYXB","target":"record","payload":{"canonical_record":{"source":{"id":"1805.03787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-05-10T02:20:41Z","cross_cats_sorted":[],"title_canon_sha256":"2714898587fadd8ffed3b62c4911dfa9e1890357bdc0fa2933c0ab5fb208166c","abstract_canon_sha256":"213206709622951deb19529b83557e11dd25c506fec77a5994254510729502d6"},"schema_version":"1.0"},"canonical_sha256":"a86acbd07d122fbd73a0013748b478b86e7a8b61b8f17cd21e936599ea0d3f89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:18.763385Z","signature_b64":"7htqPj27Y6XZYc/j2XB93t0v70wKhhbsVxgahOvAcvLTV9aK01YAySBwFUChn/5BEnl+9JIFpDmw8zM7H8nZCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a86acbd07d122fbd73a0013748b478b86e7a8b61b8f17cd21e936599ea0d3f89","last_reissued_at":"2026-05-18T00:16:18.762940Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:18.762940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.03787","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":"2026-05-18T00:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6BtO8un1Da+KFcTmh/ceZcgJOKQ7nf+oyHB4mN3JQ0PEcf8+2FGotcHZtnDOJELrfzcdaCL0qMQY/8iX2o5aBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:16:13.462041Z"},"content_sha256":"7dea7f293f67ba3fc3db5734ff4576d71e49f97c3c4057944fe8a258289be841","schema_version":"1.0","event_id":"sha256:7dea7f293f67ba3fc3db5734ff4576d71e49f97c3c4057944fe8a258289be841"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VBVMXUD5CIX3245AAE3URNDYXB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MIMO radar waveform design with practical constraints: A low-complexity approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Chenglin Ren, Fan Liu, JianMing Zhou, Longfei Zhou, Shengzhi Yang, Wu Luo","submitted_at":"2018-05-10T02:20:41Z","abstract_excerpt":"In this letter, we consider the multiple-input multiple-output (MIMO) radar waveform design in the presence of signal-dependent clutters and additive white Gaussian noise. By imposing the constant modulus constraint (CMC) and waveform similarity constraint (SC), the signal-to-interference-plus-noise (SINR) maximization problem is non-convex and NP-hard in general, which can be transformed into a sequence of convex quadratically constrained quadratic programming (QCQP) subproblems. Aiming at solving each subproblem efficiently, we propose a low-complexity method termed Accelerated Gradient Proj"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03787","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":"2026-05-18T00:16:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u9y1UU/8ZHqSIaJUOCmoKTI7NdNFhIeX2/Dt5irRza8JCqIYHufpQhXPG1h9uCFim0HrG4uqEmXBcLGUyPZWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:16:13.462884Z"},"content_sha256":"af406e019888b4c607b28ec457eede244ff5cf26dfcedd768332d0a7a7c93f9c","schema_version":"1.0","event_id":"sha256:af406e019888b4c607b28ec457eede244ff5cf26dfcedd768332d0a7a7c93f9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VBVMXUD5CIX3245AAE3URNDYXB/bundle.json","state_url":"https://pith.science/pith/VBVMXUD5CIX3245AAE3URNDYXB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VBVMXUD5CIX3245AAE3URNDYXB/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":"2026-05-31T22:16:13Z","links":{"resolver":"https://pith.science/pith/VBVMXUD5CIX3245AAE3URNDYXB","bundle":"https://pith.science/pith/VBVMXUD5CIX3245AAE3URNDYXB/bundle.json","state":"https://pith.science/pith/VBVMXUD5CIX3245AAE3URNDYXB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VBVMXUD5CIX3245AAE3URNDYXB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VBVMXUD5CIX3245AAE3URNDYXB","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":"213206709622951deb19529b83557e11dd25c506fec77a5994254510729502d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-05-10T02:20:41Z","title_canon_sha256":"2714898587fadd8ffed3b62c4911dfa9e1890357bdc0fa2933c0ab5fb208166c"},"schema_version":"1.0","source":{"id":"1805.03787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.03787","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"arxiv_version","alias_value":"1805.03787v1","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.03787","created_at":"2026-05-18T00:16:18Z"},{"alias_kind":"pith_short_12","alias_value":"VBVMXUD5CIX3","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VBVMXUD5CIX3245A","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VBVMXUD5","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:af406e019888b4c607b28ec457eede244ff5cf26dfcedd768332d0a7a7c93f9c","target":"graph","created_at":"2026-05-18T00:16:18Z","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":"In this letter, we consider the multiple-input multiple-output (MIMO) radar waveform design in the presence of signal-dependent clutters and additive white Gaussian noise. By imposing the constant modulus constraint (CMC) and waveform similarity constraint (SC), the signal-to-interference-plus-noise (SINR) maximization problem is non-convex and NP-hard in general, which can be transformed into a sequence of convex quadratically constrained quadratic programming (QCQP) subproblems. Aiming at solving each subproblem efficiently, we propose a low-complexity method termed Accelerated Gradient Proj","authors_text":"Chenglin Ren, Fan Liu, JianMing Zhou, Longfei Zhou, Shengzhi Yang, Wu Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-05-10T02:20:41Z","title":"MIMO radar waveform design with practical constraints: A low-complexity approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.03787","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":"sha256:7dea7f293f67ba3fc3db5734ff4576d71e49f97c3c4057944fe8a258289be841","target":"record","created_at":"2026-05-18T00:16:18Z","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":"213206709622951deb19529b83557e11dd25c506fec77a5994254510729502d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-05-10T02:20:41Z","title_canon_sha256":"2714898587fadd8ffed3b62c4911dfa9e1890357bdc0fa2933c0ab5fb208166c"},"schema_version":"1.0","source":{"id":"1805.03787","kind":"arxiv","version":1}},"canonical_sha256":"a86acbd07d122fbd73a0013748b478b86e7a8b61b8f17cd21e936599ea0d3f89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a86acbd07d122fbd73a0013748b478b86e7a8b61b8f17cd21e936599ea0d3f89","first_computed_at":"2026-05-18T00:16:18.762940Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:18.762940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7htqPj27Y6XZYc/j2XB93t0v70wKhhbsVxgahOvAcvLTV9aK01YAySBwFUChn/5BEnl+9JIFpDmw8zM7H8nZCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:18.763385Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.03787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7dea7f293f67ba3fc3db5734ff4576d71e49f97c3c4057944fe8a258289be841","sha256:af406e019888b4c607b28ec457eede244ff5cf26dfcedd768332d0a7a7c93f9c"],"state_sha256":"10420c4f2f0e455c9411a67c0ba0683af54e09a9a7282acc3f2c220e0f9b9c12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gT/qbY3lqCpu1hPEYl8sALyXfJIPWQLFu3Gjc4udhjg0PiNef+DOEOQgFcHEv3DvvxFPCEHF0zzdU9SVUHKNDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:16:13.467183Z","bundle_sha256":"e9b0473fb8e8f8ccc42dbc42b1e69297aef514acf9d6a61c75ae7266ff120593"}}