pedestal event 中文意思是什麼
pedestal event
解釋
藝術造型-
That is, the occasional situation where the object of interest passes directly overhead ( 90 zenith pass ). azimuth axis must rotate nearly 180 ? instantly. therefore, the standard two - axis altitude - azimuth pedestal will be unable to remain pointed at the object through the zenith pass event
所謂天頂盲區問題是指目標過天頂時對地平式設備方位軸有一個極大的過載要求,需要方位軸瞬時調轉180 (或略小於180 ) ,此時方位變化的角速度和角加速度在數學意義上是無窮大,導致目標丟失。
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