Abstract:
The dual-satellite passive location system, for its good concealment performance and efficient positioning characteristics, is widely used in modern electronic warfare. Positioning accuracy is an important index to determine the reliability of the system positioning, so how to determine the system positioning accuracy is the key to binary passive positioning system research. Based on the TDOA/FDOA joint estimation model of binary star passive location, the Geometric Dilution Precision(GDOP)analysis method was used to establish the error analysis system of the Dual-satellite Passive Location system. Combined with examples, the influences of different factors on the accuracy of binary passive positioning system were compared. Moreover, the positioning accuracy characteristics of the dual-satellite passive location system were also investigated,and positioning accuracy curve is obtained.