For a data sequence ( D[0, N-1] ) and a reference index ( R ), a search window ( W ) of length ( L ) starting at offset ( O ) is:
[ P_detect(O) = \fracLS \quad \text(for random target position) ]
Start offset = 0 → Window [0, 499] Next offset = 400 → Window [400, 899] Next offset = 800 → Window [800, 1299] (wraps) Total 4 windows to cover ~1535 chips.