A Frequency-Translating Hybrid Architecture for Wide-Band Analog-to-Digital Converters
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Bibliographic record
Abstract
A parallel architecture for high-bandwidth analog-to-digital conversion is presented. The proposed architecture uses frequency translation along with multi-rate signal processing to digitize a wide-band continuous-time analog signal through an array of identical narrowband analog-to-digital converters (ADCs). The basic idea behind this structure is to decompose the input signal into smaller frequency (channels). Each channel is composed of a two-path system that includes mixers, identical low-pass filters and identical baseband ADCs. The signal in each two-path channel is sampled and digitized into narrowband quadrature signals. After digitizing the signal in each channel, the low-rate subband samples are upconverted back to their respective center frequencies, then filtered and combined to reconstruct the digital representation of the original wide-band input signal. The digital filters are designed to minimize the reconstruction error. The effects of some major nonidealities are discussed. Several simulation results are also presented to demonstrate the performance of the system.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 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