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Record W2162554335 · doi:10.1364/ao.50.005200

Pointing efficiency in Gaussian beam coherent ladar

2011· article· en· W2162554335 on OpenAlexaff
Scott Shald, Philip Gatt

Bibliographic record

VenueApplied Optics · 2011
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAdvanced Optical Sensing Technologies
Canadian institutionsLockheed Martin (Canada)
Fundersnot available
KeywordsTransmitterOpticsLidarGaussianSIGNAL (programming language)Computer scienceReduction (mathematics)Power (physics)Free-space optical communicationGaussian beamPhysicsBeam (structure)Optical communicationTelecommunicationsMathematics

Abstract

fetched live from OpenAlex

Random pointing errors in coherent ladar tend to cause a reduction in measured signal power due to misalignment among the transmitter, receiver, and (hard) target. A simple model for the size of this impact, in terms of the size of the pointing error, would be useful in the design and evaluation of coherent ladar systems. To be most applicable to monostatic systems, the model should also include correlation between transmitter and receiver pointing errors. We derive an analytic expression for the reduction in average signal power, which we call pointing efficiency, based on Gaussian beam coherent ladar with Gaussian pointing errors that includes arbitrary correlation between transmitter and receiver pointing errors.

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 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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.268
Threshold uncertainty score0.528

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 head0.018
GPT teacher head0.228
Teacher spread0.210 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
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

Citations1
Published2011
Admission routes1
Has abstractyes

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