AIRPLANE LANDING METHOD USING A SATELLITE NAVIGATION SYSTEM AND A LANDING SYSTEM BASED THEREON

摘要

The invention can be used for aeroplane navigation. Said invention makes it possible to increase the accuracy and reliability of the determination of aeroplane coordinates. The inventive aeroplane landing method consists in determining differential corrections of pseudoranges measured on board the airplane with respect to satellites, in additionally taking into account the errors induced by the mirror reflection of signals transmitted by satellites, in pre-drawing, on a local monitoring and correcting station, the volume distribution diagram of a predictable ground-borne multipath propagation error variance, in inputting said diagram into a ground-borne database, in continuously comparing the predictable ground-borne multipath propagation error variance and the actual measured ground-borne multipath propagation error variance by selecting a maximum value therefrom, in determining the root mean square value of the ground-borne pseudorange multipath propagation error and in transmitting it to the aeroplane, wherein said method also consists in pre-drawing the diagram of the volume distribution of the airborne multipath propagation error variance, in continuously, by means of the airborne database, determining the airborne multipath propagation error variance taking into account the angular orientation of the aeroplane in relation to the current position of each satellite, in simultaneously calculating the airborne multipath propagation pseudorange error using the predictable airborne multipath propagation error as the current airborne multipath propagation error, in determining the total pseudorange error variance as the sum of the ground-borne and airborne pseudorange multipath propagation error variances for each satellite and in using the common pseudorange variances of all the satellites for calculating the refined coordinates of the aeroplane and for increasing the determination reliability therefor. A system forcarrying out said method is also disclosed.