Simultaneous Multi-Frequency Phase-Coded Microwave Signal Generation at Six Different Frequencies Using a DP-BPSK Modulator
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Bibliographic record
Abstract
An approach to the generation of a multi-frequency phase-coded microwave signal at six different microwave carrier frequencies using a laser diode and a dual-polarization binary phase-shift keying (DP-BPSK) modulator is proposed and experimentally demonstrated. The key component in the proposed system is the DP-BPSK modulator, which consists of two dual-drive Mach-Zehnder modulators (DD-MZMs) that are driven by a binary coding signal and a microwave reference signal. By controlling the bias points of the DD-MZMs, and the power of the coding signal and the microwave reference signal, phase-coded microwave signals at six different frequencies are generated at the output of a photodetector. An experiment is performed. A multi-frequency phase-coded microwave signal at six different carrier frequencies in a frequency range from 1 to 19.5 GHz is generated. The performance in terms of phase recovery accuracy and pulse compression capability is evaluated. The interferences between different channels are also evaluated and no significant interferences are observed.
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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 | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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