This paper analyzes the relationship between perpendicular baseline and terrain height sensitivity firstly, based on height error induced by uncertainty of phase.

根据测量相位不定性引起的高度误差，分析了垂直基线与地形高度灵敏度的关系，并推导了垂直基线与高度模糊数的关系式。

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In the perpendicular direction to the rotation axis of the petal, the repeat position error is most sensitive to the position error of the locking force.

在对接面内与旁瓣转轴方向相垂直的方向上，重复定位误差对锁紧力位置误差最为敏感。

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The velocity gradient, especially the perpendicular velocity gradient, leads the measuring error of flow angle with cylindrical probe to be larger than with conical multi-hole probe.

梯度使气流方向测量值向负梯度方向偏转。 圆柱探针和锥形多孔探针相比，气流方向测量误差对速度梯度更敏感，纵向梯度对俯仰角测量值的影响尤其大。

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