{"id":"W2107910370","doi":"10.1109/ccece.1999.807175","title":"A robust high speed indoor wireless communications system using chirp spread spectrum","year":2003,"lang":"en","type":"article","venue":"","topic":"Advanced Wireless Communication Techniques","field":"Engineering","cited_by":17,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"","keywords":"Chirp spread spectrum; Computer science; Chirp; Multipath propagation; Phase-shift keying; Rake receiver; Electronic engineering; Delay spread; Transmitter; Spread spectrum; Wireless; Transmission (telecommunications); Bit error rate; Channel (broadcasting); Direct-sequence spread spectrum; Telecommunications; Physics; Optics; Engineering","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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0001847241,0.0002380938,0.0002974488,0.0001651021,0.0002100291,0.00005517403,0.0008898745,0.0001226928,0.0000521303],"category_scores_gemma":[0.00001918667,0.0002550292,0.00006512347,0.0004276187,0.00009747288,0.0002584562,0.0001541597,0.0003502381,0.00005093779],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003596941,"about_ca_system_score_gemma":0.0000277385,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001667974,"about_ca_topic_score_gemma":0.0001045289,"domain_scores_codex":[0.9988181,0.0001134619,0.0004143628,0.0001840623,0.0001526356,0.0003173637],"domain_scores_gemma":[0.9973016,0.0001035749,0.00008202581,0.002365229,0.00005406185,0.0000935068],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.000007203193,0.0001481396,0.001244456,0.0002582299,0.0001481684,0.000006739403,0.0002904762,0.08874376,0.03406621,0.8719514,0.0004959055,0.002639303],"study_design_scores_gemma":[0.0008992609,0.00003747762,0.0005488849,0.0004378922,0.00006389761,0.0001346572,0.001109613,0.7005559,0.2856244,0.002088534,0.007279799,0.001219712],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.1728879,0.0009149006,0.7274464,0.0001897073,0.0002745956,0.0008447327,0.00002230884,0.006214903,0.09120449],"genre_scores_gemma":[0.8464209,0.0002370419,0.1530696,0.00002199092,0.00001965115,0.00002754234,0.00001562841,0.00007500805,0.0001126797],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.8698629,"threshold_uncertainty_score":0.9999902,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03917767593715069,"score_gpt":0.2517373054445191,"score_spread":0.2125596295073684,"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."}}