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Record W1731830998

Software DAB transmitter on live CD

2008· article· en· W1731830998 on OpenAlexaff
Pascal Charest, François Lefebvre

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Data Compression Techniques
Canadian institutionsCommunications Research Centre Canada
Fundersnot available
KeywordsUniversal Software Radio PeripheralComputer scienceEmbedded systemSoftware-defined radioSoftwareOperating systemUSBKey (lock)LaptopBroadcasting (networking)Computer hardwareTransmission (telecommunications)Backward compatibilityComputer networkTelecommunications
DOInot available

Abstract

fetched live from OpenAlex

Developing innovative applications in the field of broadcasting can be challenging for several reasons. An increased democratization of broadcasting transmission equipment is highly desirable to foster the development of new services. This paper presents the system integration of a full real-time Digital Audio Broadcasting (DAB) transmission chain that runs from a single live CD. A particular effort was done to reuse and combine the key building blocks required to build this system. First, system components needed to build the DAB transmission system are identified. On one hand, a generic PC, the Universal Software Radio Peripheral (USRP) and a generic G.703 network device are selected as the base hardware. On the other hand, GNU Radio and other software modules are used. Second, the integration method based on open source software is described. A customization tool is used to adapt a Ubuntu installable live CD. The resulting disk image was tested on different platforms including desktops, laptops and virtual machines. The system worked on every tested platform that could also run the original base Ubuntu live CD. Joint use of the live CD, a USB key and a laptop proved to be a very convenient way to build portable and easy to use demonstration of the DAB technology.

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: Not applicable · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.517
Threshold uncertainty score0.551

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 communication0.0000.001
Open science0.0010.000
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 head0.025
GPT teacher head0.255
Teacher spread0.231 · 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 designNot applicable
Domainnot available
GenreMethods

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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