{"id":"W2037094860","doi":"10.1049/iet-spr.2014.0120","title":"Instantaneous fundamental frequency estimation of non‐stationary periodic signals using non‐linear recursive filters","year":2015,"lang":"en","type":"article","venue":"IET Signal Processing","topic":"Speech and Audio Processing","field":"Computer Science","cited_by":17,"is_retracted":false,"has_abstract":true,"ca_institutions":"Queen's University","funders":"","keywords":"Harmonics; Fundamental frequency; SIGNAL (programming language); Kalman filter; Control theory (sociology); Extended Kalman filter; Computer science; Harmonic; Algorithm; Instantaneous phase; Mathematics; Filter (signal processing); Acoustics; Artificial intelligence; Engineering; Computer vision; 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":[0.0004816646,0.0005636528,0.0006395491,0.000718411,0.0002695817,0.0005742178,0.0006417628,0.0006825036,0.001149693],"category_scores_gemma":[0.001917652,0.0002969101,0.0005852534,0.0004582683,0.0002654284,0.0008364788,0.0003804704,0.0006926578,0.0006059738],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003526246,"about_ca_system_score_gemma":0.0005355426,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002754507,"about_ca_topic_score_gemma":0.002856087,"domain_scores_codex":[0.9996958,0.00004140121,0.00002024646,0.00007926062,0.0001391521,0.00002416985],"domain_scores_gemma":[0.9995797,0.0002020316,0.00006103272,0.00004858482,0.00009886768,0.00000978204],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0001654777,0.00007374334,0.00222776,0.0002914607,0.00008604156,0.0001478273,0.0002007824,0.1529248,0.05469596,0.009373113,0.001455101,0.7783579],"study_design_scores_gemma":[0.00001373286,0.0000726876,0.002252531,0.00002412619,0.00003057346,0.0001584356,0.00002375389,0.9745349,0.01561134,0.002845336,0.004406756,0.00002585991],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.006678797,0.0001705368,0.9924402,0.00002030449,0.00002679068,0.0000122361,0.00001605098,0.000245048,0.0003899005],"genre_scores_gemma":[0.2209972,0.0006899427,0.7742841,0.00004709047,0.00007406633,0.00006807068,0.0002217349,0.0001358273,0.00348202],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.002754507,"threshold_uncertainty_score":0.005476952,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03527213459739383,"score_gpt":0.2965130527574068,"score_spread":0.261240918160013,"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."}}