In the system of measuring angle of phase interferometer, it is considered that the impact brought by baseline obliquity on phase can be eliminated by equivalent baseline from geometric projection. 在相位干涉仪测向系统中,通常都认为基线倾角对相位的影响是可以通过几何投影的方法得到等效基线来消除的。
The angle between the plane of the ecliptic and the equatorial plane is the obliquity of the ecliptic. 黄道面与赤道面的夹角是黄道的倾角。