signal opsignal → tableimport fullseye as fs; fs.ledger.signal_features(x, rate=1.0) (実装を直接呼ぶなら import dsp; dsp.signal_features(x, rate=1.0)、台帳から引くなら ops1d.get("signal_features"))A compact acoustic/vibration feature vector for anomaly detection:
rms, peak, crest_factor, zcr, spectral_centroid (Hz),
peak_freq (Hz), bandwidth (Hz). All finite — a NaN / Inf sample raises
ValueError rather than producing NaN features; empty signal -> zeros.
The three spectral entries are built on :func:spectrum, but every one of
them is a ratio of magnitudes (argmax, a magnitude-weighted mean, a
magnitude-weighted spread), so the raw |rfft| convention documented there
cancels out and these numbers are unaffected by it. rms, peak and
crest_factor are computed in the time domain and never touch the FFT.
table を入力に取れる)—
signal)lowpass · highpass · bandpass · envelope · rms · resample · spectrum · spectrogram
Provenance: dsp.py — ONED operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.