目标的雷达散射截面（RCS）与照射频率和照射角有关。
The radar cross section (RCS) of a target is dependent on frequency as well as observation angle.
利用靶区剂量分布均匀时每个野的照射角及应给的剂量，由此求出楔形滤板应取的楔形角。
The radiation angle and the given dose for each field were derived from this equation. The wedge angles of each field were got.
提出了利用速度向量及位置信息求取照射角的方法，并与航迹外延法求照射角作比较，提出了基于照射角的雷达调度策略。
The method of obtaining it by using the velocity vector and location information is put forward, which is compared with the method of track extrapolation.
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