High-frequency systolic broadband beamforming using polyphase 3D IIR frequency-planar digital filters with interleaved A/D sampling
Bibliographic record
Abstract
A massively-parallel polyphase systolic array processor is proposed for broadband beamforming using a 3D IIR space-time digital frequency-planar filter that is capable of operating at a throughput of M 2D spatial frames every clock cycle, where M is the number of (poly)phases. The method achieves an M-fold increase in throughput relative to previously known architectures, and has the potential to achieve highly-selective broadband radio-frequency (RF) digital beamforming at frame rates that are several times greater than the clock rate of the VLSI system. The practical real-time performance of the processor is demonstrated using a 3×3 section of a systolic array (that is part of a larger systolic N <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</inf> × N <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ≈100 × 100 system), consisting of a locally-interconnected matrix of 9 identical fully-pipelined speed-optimized two phase (M=2) parallel processors on a Xilinx Sx35 FPGA device, having a corresponding measured spatial frame-rate of 100 million frames/second, when clocked at 50 MHz.
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How this classification was reachedexpand
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 | 0.001 | 0.005 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".