Sliding Window Peak Detector

Detect peaks in a noisy sensor stream using a sliding window: a sample is a peak if it is the maximum in its window and exceeds a threshold above the window mean.

Constraints

• Window size is odd; the sample under test is the centre.
• Edges where a full window is unavailable are skipped.
• Return the list of peak indices.
• Threshold is expressed in absolute units above the window mean.
• Adjacent peaks within half a window must be collapsed to the largest.