Kalman filter noun 1verb 1forms 3 noun1 •An algorithm that uses a series of measurements observed over time, containing statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more precise than those based on a single measurement alone. They are used in navigation, signal processing, etc.There is no doubt that complex notation can create a learning barrier and the notation involved in the Kalman filter can be quite formidable. — 2005 verb1 •To apply this algorithm to. formsKalman filtered · Kalman filtering · Kalman filters