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Record W2155654167 · doi:10.1109/hsi.2008.4581421

An adaptive system for robust analog signal sample/hold

2008· article· en· W2155654167 on OpenAlexaff
Chunyan Wang

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAnalog and Mixed-Signal Circuit Design
Canadian institutionsConcordia University
Fundersnot available
KeywordsSample and holdComputer scienceAnalog signalSIGNAL (programming language)Signal transfer functionSample (material)Analog deviceSignal generatorControl theory (sociology)LinearityFeedback loopElectronic engineeringElectronic circuitDigital signal processingEngineeringComputer hardwareArtificial intelligenceChipTelecommunicationsElectrical engineering

Abstract

fetched live from OpenAlex

In this paper, a scheme of adaptive system producing a signal sample that is equal to the input is proposed. The system consists of a simple signal sample generator and some logic gates forming a feedback loop. The sample generator is modeled as a multi-dimensional nonlinear circuit and the digital code is applied to determine the coordinates of its operating point. By using the negative feedback loop, the code is update step by step to get the right operating point for the system to produce the sample that is the closest to the input signal. This updating process makes good use of the non-linearity of the system to have the step size variable in such a way that it is large at the beginning of the process to have a quick convergence and small at the end for a small residue error. Because the signal sample is recorded by a digital code and it can be reproduced easily without problems occurring in analog signal storage and reproduction, the system can be used for a robust analog signal sample/hold. As an example of implementing such an adaptive system, a current-sample/hold circuit has been designed and presented in the paper.

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)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.005
Threshold uncertainty score0.017

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0050.001

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 head0.046
GPT teacher head0.209
Teacher spread0.163 · 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 designBench or experimental
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

Citations0
Published2008
Admission routes1
Has abstractyes

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