//! State estimation from noisy measurements.
//!
//! - [`KalmanFilter`] — the linear filter, a single Gaussian belief, over a [`KalmanModel`].
//! - [`ExtendedKalmanFilter`] — nonlinear models, differentiated for their Jacobians each step.
//! - [`ParticleFilter`] — a cloud of weighted samples, for non-Gaussian or multi-peaked beliefs
//! (`alloc` only).
//! - [`CovarianceUpdate`] — how the Kalman filters recompute the covariance.
pub use ExtendedKalmanFilter;
pub use ;
pub use ;