NAVIGATION METHOD USING HIGH-PRECISION SUBSCRIBER TERMINAL AND HIGH-PRECISION SUBSCRIBER TERMINAL Russian patent published in 2024 - IPC G01S19/45 G01C21/00 G01S1/24 G01S3/46 

FIELD: radio navigation.

SUBSTANCE: invention enables to implement a method of implementing a noise-immune radio navigation system, which provides high-precision positioning of moving objects. In the disclosed navigation method, a high-precision user terminal is used, which is part of a local radio navigation system integrated with a GNSS and an inertial navigation system (INS). Method uses a GNSS navigation signal and a signal free from the effect of the ionosphere and errors in determining the ephemerides of satellites, using requestless mode and differential-ranging method of positioning. In addition, a noise-immune method of correlation processing of a signal code and dynamically varying pseudorandom sequences (PRS) according to a complex law, methods of dealing with re-reflected signals, high-power noise-like signals at the reception point, for which noise suppression at the output of the matched filter is 2B times, where B is the signal base. Method provides high-precision navigation of moving objects using an inertial navigation system included in a Kalman filter and a high-precision GNSS receiver with a differential correction receiver.

EFFECT: providing high-precision positioning of moving objects by integrating a local navigation system and a global navigation satellite system (GNSS) receiver in a user terminal with a differential correction receiver with an inertial navigation system using a high-precision method of correlation processing of noise-like signals, providing centimeter positioning accuracy and high resistance to masking and imitation interference.

2 cl, 11 dwg, 3 tbl