Patent ID: 8587478

Claim:
A localization method of multiple jammers at a computer of the central tracking system based on a TDOA method, comprising: calculating TDOA measurements of arranging multiple sensors for receiving GPS signal, and calculating TDOA measurement values τ ri while a reference sensor is changed, in turn, with respect to the multiple sensors; locating multiple jammers using all TDOA measurements of calculating estimated location solutions of the multiple jammers using all TDOA measurement values; finding a searching quadrant of finding a quadrant having the highest density of the estimated location solutions on the basis of the sensors; setting a searching range and detecting searching cell of deciding a searching range based on a size of the searching cell previously preset in the found quadrant, and searching the searching cell including all true location solutions corresponding to the number of the sensors while moving by searching intervals; and determining estimated positions of the multiple jammers of deciding the number of the jammers by calculating an average value of distances among the true location solutions in the searching cell having the true location solutions corresponding to the number of the sensors, and calculating location solutions of the multiple jammers.