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Record W2070443158 · doi:10.1002/ecja.1137

A consideration of multipath detection in navigation systems

2002· article· en· W2070443158 on OpenAlexaff
Hirohisa Tajima, Sonosuke Fukushima, Hisasi Yokoyama

Bibliographic record

VenueElectronics and Communications in Japan (Part I Communications) · 2002
Typearticle
Languageen
FieldEngineering
TopicGNSS positioning and interference
Canadian institutionsMinistry of Transportation of Ontario
Fundersnot available
KeywordsMultipath propagationComputer scienceWaveformPosition (finance)Global Positioning SystemMultipath mitigationDelay spreadElectronic engineeringAlgorithmTelecommunicationsEngineering

Abstract

fetched live from OpenAlex

Abstract Some navigation systems measure the range or the angle by detecting the position of the pulse waveform. They cause some position detection errors, if the multipath wave overlaps with the direct wave with different position and phase. This paper presents a multipath detection method to improve the integrity of these systems. The results of simulation and ground‐based experiment for DME/P are described as an example, which use dual function of time‐of‐arrival detection. Each function is supposed to have a different multipath error characteristic. In addition, its multipath error detection method and application to MLS and GPS are also described. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 85(11): 52–59, 2002; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecja.1137

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.006
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.006
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.002
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.033
GPT teacher head0.248
Teacher spread0.215 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations4
Published2002
Admission routes1
Has abstractyes

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