此方法不需要目标机动的先验知识，而是构造一个可自适应调整的缩放因子，通过该因子对过程噪声进行调节。

This approach does not rely on the prior knowledge to the target motion, and utilizes a zoom factor, which can adjust itself adaptively. By this factor, the process noise covariance can be modified.

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此方法不需要目标机动的先验知识，而是构造一个可自适应调整的缩放因子，通过该因子对过程噪声进行调节。

The approach did not rely on prior knowledge about the target motion, and utilized the expectation of the sum of squares of "new value" to construct a zoom factor, which can adjust adaptively.

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