Bibliographic record
Abstract
Compass navigation system has increasingly played more and more important roles in the military and civil navigation. Although the signal of compass using a spread spectrum technique makes it own a certain degree of interference margin, it still can be affected sensitively by interference due to its weak signal power. The diversity of interference makes anti-jamming difficulty by just using either time domain filtering technology or space domain filtering technology. Among all interferences, broadband interference is most influential and most difficult to overcome. To solve these problems, we use Space-Time adaptive processing technique in this article and it is more useful comparing with time domain filtering technology or space domain filtering technology or frequency domain filtering technology as it increases the degrees of freedom without increasing the number of antenna. However different antenna array has different infl uence using Space-Time adaptive processing technique. So in this article we have discussed the space-time responses of different antenna array and improvement factor of each antenna array. The simulation shows that circular antenna array plays better in antijamming process. It could provide a theoretical foundation in the design of Bei Dou receiver.
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".