Aerospace Instrument-Making Annotation << Back Algorithms for Processing Information from a Navigation System During Flight Tests Kupriyanov A.O., Selezneva M.S., Neusypin K.A. The correction algorithms in the output information of the navigation complex are considered. The accuracy of the correction algorithms is studied under flight test conditions. The navigation complex is installed on a radio-transparent balloon. The signals of the inertial navigation system and GNSS are subject to complex processing. The adaptive Kalman fi lter, federated Kalman filters and extended Kalman filter are compared. The results of processing the data of flight experiments are presented, characterizing the accuracy of the studied algorithmic solutions. Keywords: navigation system, flight experiment, inertial navigation system, Kalman filtering algorithms. DOI: 10.25791/aviakosmos.2.2025.1459 Pp. 12-21.