For the case of planar interception, the so called relative heading error angle between the relative velocity vector and the LoS (Line of Sight) is chosen as the output to be controlled to zero.

针对平面拦截问题，选择导弹和目标之间的相对速度矢量与导弹-目标视线之间的夹角（称为相对航向误差角）作为将要被控制到零的输出。

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This class of error arises when data is handled in an insecure manner, which makes it available to possible interception or modification by malicious parties.

此类错误通常是因为采用了不安全数据处理方法，而且会导致恶意用户对数据的监听或者修改。

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