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0b571688a9
Implements CDS to reduce noise by taking multiple measurements at different source PLL phase offsets and combining with cosine weighting. Firmware changes (VNA.cpp, Protocol.hpp): - Add cdsPhases field to SweepSettings (0=disabled, 2-7=phase count) - Configure N internal sweep points per user point with phase offsets - Accumulate weighted samples: result = Σ(sample[k] × cos(2π×k/N)) - Per-stage accumulators for multi-stage measurements PC application changes: - Add "CDS" checkbox to VNA acquisition toolbar - When enabled, sets cdsPhases=2 for 180° differential measurement - Tooltip explains the feature With 180° CDS (2 samples): - Sample at 0°: weight = cos(0°) = 1 - Sample at 180°: weight = cos(180°) = -1 - Combined result = Sample₀ - Sample₁₈₀ Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> |
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| .. | ||
| .settings | ||
| Application | ||
| Drivers | ||
| Inc | ||
| Middlewares/Third_Party/FreeRTOS/Source | ||
| Src | ||
| Startup | ||
| .cproject | ||
| .gitignore | ||
| .mxproject | ||
| .project | ||
| Makefile | ||
| STM32G431CBUX_FLASH.ld | ||
| VNA_embedded Debug into running system.launch | ||
| VNA_embedded Debug.launch | ||
| VNA_embedded.ioc | ||