Technical notes on sensing, timing and data buses based on open literature: derivations, error budgets and verification methods.
Three-axis magnetometer calibration: measurement model, ellipsoid fitting, identifiability limits, data coverage, heading error budget and validation.
20 min read · 15 references
Attitude from accelerometer and magnetometer only: Wahba/QUEST covariance, magnetic inclination, linear-acceleration ambiguity, error budget, validation.
20 min read · 16 references
SiPM microcell model, dark counts and correlated noise, breakdown-voltage temperature coefficient, bias compensation, front ends and LiDAR thresholds.
20 min read · 14 references
Jitter and walk error in 905 nm pulsed TOF ranging: derivations, CFD and time-domain correction, TDC architectures, error budget and verification.
20 min read · 20 references
Verifying ARINC 429 bit timing, word gap and per-label refresh intervals with hardware timestamps, fault injection and an uncertainty budget.
22 min read · 14 references
PTP t1–t4 derivation, the Δ/2 asymmetry error, software vs hardware timestamps, TC/BC, PI servo and oscillator terms in a numeric error budget.
20 min read · 23 references
