METHOD FOR COPING WITH GPS RADIO DISTURBANCE IN SYSTEM USING DATA LINK, DEVICE THEREOF, AND COMPUTER-READABLE RECORDING MEDIUM FOR SAME

摘要

The present invention relates to a method for coping with GPS radio disturbance. The method comprises the steps of: receiving a GPS signal in a transmitting system from a satellite through a GPS receiver, determining whether the status of the received GPS signal is normal, and determining whether an initial GPS deception has occurred if the status of the received GPS signal is normal; using the position data of target data including the same track data as the track data of the transmitting system as the position data of the transmitting system if the initial GPS deception has occurred, setting the predetermined value of position quality included in ship data as zero, and setting the value of a GPS spoofing indicator which indicates that the initial GPS deception has occurred as one; and determining whether the value of the GPS spoofing indicator is set as one if the initial GPS deception has not occurred, and setting the value of the position quality included in the ship data as a value greater than zero if the value of the GPS spoofing indicator is not set as one.;COPYRIGHT KIPO 2014;[Reference numerals] (AA) Receive a GPS signal (every second); (BB) Transmit ship data (every six seconds); (CC) Receive target data (every three seconds); (DD) GPS deception track; (EE) Normal track; (FF) Ship position = GPS data position; (GG) The initial GPS deception occurs (over 琯); (HH) Set Gpq = 0; (II) Transmit ship data where Gpq = 0; (JJ) Continue GPS deception (over 貫); (KK) Ship position = Target data position; (LL) Release GPS deception (below 貫); (MM) Set Gpq 0; (NN) Ship position = GPS data position; (OO) Transmit ship data where Gpq 0