导弹精度期望具有至少300米圆概率误差(CEP)，虽然一些报道称发射井和竖立式运输发射架(TEL) -基分别具有100米和150米的圆概率误差(CEP)。
The missile is expected to have an accuracy of at least 300m CEP, though it is reported that the silo and TEL-based version have 100 and 150m CEP respectively.
据称发射井式DF-31精度达到100米圆概率误差（CEP），如果装备使用一枚高当量MIRV弹头，足够摧毁硬化的导弹发射井。
The silo-based DF-31 has a reported accuracy of 100m CEP, which is sufficient to destroy hardened missile silos if equipped with one of the higher yield MIRV warheads.
试验结果表明，当传感器噪声的均方根小于10米时，TERCOM算法可以获得大于90%的 匹配概率，SITAN算法也可以达到60~70米的CEP圆概率 误差。
The result shows that when the mean root square of sensor noise is less than 10m, TERCOM algorithm can achieve matching probability of 90%, while the CEP of SITAN is 60~70 meters.
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