But the alignment and calibration of the optical axis and the electric axis of phased array radar demands high perpendicular accuracy of the optical axis to the array plane.

而相控阵雷达光电轴的标定与校准则要求光轴与阵面较高的垂直精度。

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The processor can quickly determine the direction of the signal: because the radio waves reach both antennas at the same time, they must be coming from a direction perpendicular to the array.

处理器可以很快决定出讯号的方向，因为无线电波同时抵达两个天线，所以必然来自与阵列垂直的方向。

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