Jian Ge

Structured Innovation-Based Covariance Calibration for TLE-Driven dSGP4–EKF Orbit Determination

Reliable orbit estimation from position observations depends on both nominal propagation and the specification of process and measurement uncertainty. An offline covariance calibration framework is presented for a TLE-driven differentiable SGP4 extended Kalman filter (dSGP4–EKF). dSGP4 supplies the fixed nominal trajec...