A pilot-aided neural network for modeling and identification of nonlinear satellite mobile channels
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Bibliographic record
Abstract
We propose a neural network pilot symbol-aided (NN-PSA) receiver for nonlinear satellite mobile channels. The NN-PSA receiver is composed of a two-layer memory-less neural network (NN) nonlinear identifier and a pilot symbol-aided (PSA) fading estimator. In comparison with traditional techniques, the main advantage of this receiver is that it is able to identify and track both the nonlinearity and the time-varying fading simultaneously without prior knowledge of them. The natural gradient (NG) descent is used for NN training, which shows superior performance in comparison to the classical back propagation (BP) algorithm. The paper is supported with simulation results for 16-QAM modulation in terms of symbol error rate (SER) and mean square error (MSE) performance.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| 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 | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it