建立了导航系统定位精度与战斗机截击发现概率之间的关系；
The relationship between positioning precision of navigation system and detecting probability of fighter for intercepting is established.
分析了雷达测距精度、雷达基线长度对系统定位精度的影响。
The influence of the error of distance scaling and the length of baseline on the positioning precision is analyzed.
但是EKF的线性化会带来截断误差，从而影响系统定位精度。
However, the linearization of EKF causes error which influences the accuracy of the system.
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