Performance of the Consumer ATSC-DTV Receivers in the Presence of Single or Double Interference on Adjacent/Taboo Channels
Bibliographic record
Abstract
This paper presents the results of laboratory evaluations for some different generations of the ATSC 8-VSB digital television receivers that are currently available in the market. The tests, performed by the Communications Research Centre Canada (CRC), were to determine the ability of the receivers to maintain successful reception on a desired DTV channel in the presence of a single or double adjacent/taboo channel interference. As the FCC has also performed tests with similar purposes on a variety of consumer grade DTV receivers, some comparisons are also made between the CRC and FCC test results. The results of this experiment may be helpful in providing a better perspective in devising technical criteria for the sharing of the TV bands with other services. An example of such services is the TV Band Devices (TVBD), which is suggested to operate in the "white spaces" of the TV bands. TVBDs must protect DTV or any other services (incumbents) that are already allowed to operate in the TV spectrum, and can not claim protection from them.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".