# Signal Analysis Signal Quality

> Sub-skill of signal-analysis: Signal Quality (+2).

- Skill: `vamseeachanta/signal-analysis-signal-quality` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/signal-analysis-signal-quality`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/signal-analysis-signal-quality/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/signal-analysis-signal-quality

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# Signal Quality (+2)

## Signal Quality


1. **Check sampling rate** - Ensure Nyquist criterion for frequencies of interest
2. **Remove transients** - Skip build-up periods in OrcaFlex simulations
3. **Validate stationarity** - Use multiple segments for PSD estimation
4. **Handle gaps** - Interpolate or segment around missing data


## Rainflow Analysis


1. **Hysteresis filtering** - Remove small cycles (typically < 1-5% of range)
2. **Residual handling** - Choose appropriate method for incomplete cycles
3. **Cycle binning** - Use consistent bin sizes for histogram comparison
4. **S-N curve matching** - Ensure stress units match S-N curve units


## Performance Optimization


1. **Parallel processing** - Use batch extraction for multiple files
2. **Memory management** - Process long signals in chunks
3. **Downsampling** - Reduce sampling rate if high frequencies not needed
4. **Result caching** - Store intermediate results for reprocessing