CPC G01S 19/14 (2013.01) [G01S 19/08 (2013.01); G01S 19/396 (2019.08)] | 10 Claims |
1. An APNT service positioning and integrity monitoring method, comprising the following steps of:
determining a positioning accuracy requirement in a target scene;
when the positioning accuracy requirement is high-accuracy positioning, determining a position of an aircraft by adopting a combined positioning algorithm, and monitoring the integrity of a combined positioning by adopting a multi-solution separation mode;
when the positioning accuracy requirement is low-accuracy positioning, judging whether the aircraft is a high-altitude user;
if not, adopting an air-to-air positioning algorithm for a high-altitude user and a low-altitude user based on LDACS to determine the position of the aircraft, and adopting a least square residual method to monitor the integrity of the air-to-air positioning.
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