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Record W2102306504

PEDESTRIAN AND VEHICULAR NAVIGATION UNDER SIGNAL MASKING USING INTEGRATED HSGPS AND SELF CONTAINED SENSOR TECHNOLOGIES

2003· article· en· W2102306504 on OpenAlex
Gérard Lachapelle, O. Mezentsev, Jussi Collin, Glenn MacGougan

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicGNSS positioning and interference
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsGlobal Positioning SystemComputer scienceSIGNAL (programming language)AccelerometerGPS signalsInterference (communication)Reliability (semiconductor)Real-time computingMasking (illustration)Assisted GPSEngineeringTelecommunications
DOInot available

Abstract

fetched live from OpenAlex

The performance enhancements achievable under signal masking such as urban canyons, indoor and under the forestry canopy with High Sensivity GPS (HSGPS) technology are first described using sample field results. HSGPS uses a longer integration time in order to utilize signals that are 25-30 dB weaker than the nominal line-of-sight GPS signals. A self-aided implementation of HSGPS that does not require external aiding from an existing network was tested. Depending on the type of signal masking, availability increases substantially. However, this occurs at the cost of increased susceptibility to interference which leads to very large measurement errors in some cases. Many tests obtained under a variety of conditions and summarized in the paper demontrate this clearly. In order to improve HSGPS overall performance (availability, accuracy, and reliability), integration with self-contained portable, preferably low cost sensors, is described. These sensors include miniature accelerometers, gyros, and six degrees of freedom IMUs. A performance analysis of vehicular and pedestrian applications of HSGPS conducted under a variety of conditions shows the advantages and limitations of self-contained sensor augmented HSGPS.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.662
Threshold uncertainty score0.383

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.012
GPT teacher head0.210
Teacher spread0.198 · 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

Quick stats

Citations19
Published2003
Admission routes1
Has abstractyes

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