METHOD FOR SELF-CORRECTION OF SATELLITE NAVIGATION RECEIVERS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2023 - IPC G01C21/00 

FIELD: navigation systems.

SUBSTANCE: invention can be used to create autonomous satellite navigation receivers (SNR) with a self-correction mode for aircraft and other moving objects. The method for self-correction of the speeds of horizontal channels of the SNR using its coordinates consists in constructing an additional navigation channel containing a physical integration filter, a signal delay unit, an adder in each horizontal channel and a navigation information calculation unit. Signals with SNR coordinates are sent to the first inputs of physical integration filters, and signals with SNR velocities are sent to the second inputs of physical integration filters, high-frequency errors in velocities and coordinates are filtered simultaneously and constant errors in SNR velocities are extracted. The filtered and extracted constant speed errors are sent to the inputs of the signal delay blocks, for the duration of the transition process, from the outputs of the signal delay blocks, the set speed error is sent to the second inputs of the adders, where it is subtracted from the SNR velocities directed to the first inputs of these adders, from the outputs which the corrected SNR velocities are sent to the first input of the navigation information calculation unit, the second input of which receives navigation information from the third SNR output. On their basis, in the block for computing navigation information, the coordinates of the object's location are calculated.

EFFECT: increase in static and dynamic accuracy.

2 cl, 6 dwg, 2 tbl