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Record W3154954796 · doi:10.1109/mim.2021.9400956

Synchronous Demodulation for Low Noise Measurements

2021· article· en· W3154954796 on OpenAlex
Erfan Ghaderi, Behraad Bahreyni

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

VenueIEEE Instrumentation & Measurement Magazine · 2021
Typearticle
Languageen
FieldEngineering
TopicAdvanced MEMS and NEMS Technologies
Canadian institutionsSimon Fraser University
Fundersnot available
KeywordsDemodulationComputer scienceNarrowbandElectronic engineeringBandwidth (computing)Multiplier (economics)Noise (video)Filter (signal processing)Noise measurementNoise reductionTelecommunicationsEngineeringArtificial intelligence

Abstract

fetched live from OpenAlex

This paper provides an overview of the applications of synchronous demodulators for low noise measurements in a tutorial manner. Synchronous demodulators have been around for nearly a century and used extensively for precise measurements and reduction of noise bandwidth in a wide range of applications. The purpose of this paper is to briefly introduce the method that is recognized and formalize its performance. The theory explains how to amplify a narrowband signal to reduce the amount of measurement noise and how the process can be simply considered as a multiplier followed by a low-pass filter. We also introduce some of the applications and design considerations for using synchronous demodulation. Some of the advanced topics are briefly discussed with reference to the most recent contribution in this field for those interested in a deeper understanding of the content.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.226
Threshold uncertainty score1.000

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 head0.042
GPT teacher head0.256
Teacher spread0.214 · 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