{"id":"W2896897885","doi":"10.1121/1.5067506","title":"Validity of the frozen-surface approximation for large time-bandwidth signals","year":2018,"lang":"en","type":"article","venue":"The Journal of the Acoustical Society of America","topic":"Underwater Acoustics Research","field":"Earth and Planetary Sciences","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Defence Research and Development Canada; Dalhousie University","funders":"","keywords":"Bandwidth (computing); Born approximation; Duty cycle; Wideband; Sonar; Signal processing; Underwater; Duration (music); Computer science; Pulse duration; SIGNAL (programming language); Acoustics; Scattering; Pulse (music); Optics; Physics; Telecommunications; Geology; Radar; Power (physics)","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.003076295,0.0007477447,0.0009331387,0.0007229487,0.001103113,0.001969572,0.002488852,0.001706359,0.002815581],"category_scores_gemma":[0.01928617,0.0004904582,0.000901518,0.0004890593,0.003432593,0.004516799,0.001841548,0.002992108,0.001243927],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007997561,"about_ca_system_score_gemma":0.0008145483,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004045994,"about_ca_topic_score_gemma":0.00155245,"domain_scores_codex":[0.998404,0.0003257545,0.00005922911,0.0002426787,0.0007982764,0.0001700207],"domain_scores_gemma":[0.99051,0.007235697,0.0003249346,0.001091459,0.0007202735,0.0001175352],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0004922485,0.00008929434,0.002671177,0.0002911482,0.00009920681,0.001751513,0.00104726,0.3672178,0.04383475,0.5280827,0.00374321,0.05067964],"study_design_scores_gemma":[0.00001110654,0.00003522365,0.0003147296,0.00002453277,0.000007254294,0.0002257628,0.00005968362,0.8958343,0.004799795,0.09751759,0.001133935,0.00003616923],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.04686347,0.0005598973,0.9363521,0.0009140178,0.0001815775,0.00002454356,0.0001126695,0.0003971274,0.01459466],"genre_scores_gemma":[0.8579547,0.001158829,0.1293364,0.0004954115,0.0001522233,0.00006817846,0.0003931167,0.0004117043,0.01002941],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.004045994,"threshold_uncertainty_score":0.01626921,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0294242975006656,"score_gpt":0.2742904278264271,"score_spread":0.2448661303257615,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}