Nonlinear noise wrapper: construction checks
All 21 checks pass, including both native input formats. The two-second known-calibration calculation agrees with the wider-tangent reference. Matched positive, negative and half-amplitude errors satisfy the predeclared finite nonlinearity checks. All inputs and native work remain charged.
This qualifies the tested wrapper, not long-record approximation accuracy, unknown calibration uncertainty, real instrument noise or confidence. No aircraft recording or protected ESA group was read.