atsunatsu c176d6ad88 feat(cw): port ggmorse algorithms - auto pitch/speed detection, adaptive threshold ...

- Add CwResampler: linear resampler (downsample to 4 kHz base rate)
- Add CwFilter: first-order IIR high-pass (200 Hz) + low-pass (1200 Hz)
- Add CwGoertzel: running Goertzel filter for tone tracking
- Add CwPitchDetector: DFT-based pitch detection (200-1200 Hz, 10 Hz steps)
- Rewrite CwDecoder: auto pitch detection, auto speed estimation (5-55 WPM),
  adaptive threshold with exponential moving average, resampled 4 kHz pipeline
- 22 unit tests covering resampler, filter, Goertzel, pitch detector, decoder state
- All existing UI/ViewModel code unchanged (same class interface)

2026-08-01 19:22:14 +08:00

..

data

Fixed manual OMM (.csv) data import, tweaked messaging

2026-07-30 15:56:50 +02:00

domain

feat(cw): port ggmorse algorithms - auto pitch/speed detection, adaptive threshold

2026-08-01 19:22:14 +08:00

presentation

feat(cw): add built-in CW Morse code decoder for linear transponders

2026-07-31 18:44:49 +08:00