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Record W2535190955 · doi:10.1109/isape.2006.353357

A Hybrid Diversity Antenna System

2006· article· en· W2535190955 on OpenAlexafffund
Heather MacLeod, Zhizhang Chen

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAntenna Design and Analysis
Canadian institutionsDalhousie University
FundersAtlantic Canada Opportunities Agency
KeywordsAntenna diversityMultipath propagationComputer scienceDiversity combiningElectronic engineeringDiversity schemeDiversity gainCooperative diversityAntenna (radio)WirelessSIGNAL (programming language)Channel (broadcasting)Signal strengthTelecommunicationsFadingEngineering

Abstract

fetched live from OpenAlex

To increase link gains and enhance performance in wireless systems, antenna diversity has long been used. Such diversity provides a means not only to overcome the effects of signal multipath andfading in realistic RF channels or propagation environments but also to increase channel capacity. In this paper, we propose a design that uses hybrid combining of two types of antenna diversity, spatial and polarization, for a consistently better received RF signal. The design is adaptive in that it periodically tests signal strength on a number of channels, and selects those which provide the better signals at that time. A four-choose-two system was developed andprototyped. About 5 dB in power gain over the reference non-hybrid system was achieved. A significant reduction in signal power variance (about 2.3 dB) was also observed experimentally.

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)0.000
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 score0.004
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0040.002

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 head0.006
GPT teacher head0.156
Teacher spread0.150 · 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
Published2006
Admission routes2
Has abstractyes

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