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Record W2137053689 · doi:10.1109/glocom.1991.188591

A SAW-based group demodulator for onboard processing in communications satellites

2002· article· en· W2137053689 on OpenAlex

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
TopicAcoustic Wave Resonator Technologies
Canadian institutionsCommunications Research Centre CanadaCOM DEV International
Fundersnot available
KeywordsDemodulationComputer scienceElectronic engineeringCommunications satelliteBit error rateMultiplexingSignal processingChirpInterference (communication)Channel (broadcasting)Computer hardwareElectrical engineeringSatelliteEngineeringTelecommunicationsPhysicsOpticsDigital signal processing

Abstract

fetched live from OpenAlex

An experimental 24-channel multicarrier (64-kb/s bit rate for each carrier) group demodulator using surface acoustic wave (SAW) chirp Fourier transform (CFT) processing is described. The demodulated data are combined into a single time division multiplexing (TDM) bit stream at the standard T1 rate of 1.544 Mb/s. Measured data on this M unit demonstrate superior performance (40-dB sidelobe suppression, 0.34-dB combined interference degradation), inherent reliability, and power efficiency of SAW technology when processing a large number of channels over wide bandwidths. This unit will be tested further using the Olympus satellite in a double-hop mode.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.937
Threshold uncertainty score0.430

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 head0.035
GPT teacher head0.238
Teacher spread0.204 · 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

Citations9
Published2002
Admission routes1
Has abstractyes

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