This paper introduces antenna beam stabilization which is based on tri-axis stabilization platform of azimuth-elevation-polarization,presents a new concept of antenna beam coordinate,and antenna beam stabilization isolation equations are deduced,for overcoming disturbance of vehicle\'s angle movement,and simulated based on the model.

According to the gyro self-stabilization method and the concept of the defined antenna beam coordinates system,the influences on pointing and polarization of the beam caused by the carrier\'s attitude variation are analyzed,and the stabilization isolation equations are deduced,so the stabilization of the beam\'s pointing and polarization are realized.

By use of the sinusoidal spatial transform, the method transfers the nonlinearly variational characteristics on monopulse angle sensitive function versus scan angle in antenna array coordinate to a simple linearly shift one in sinusoidal space.

The celestial coordinate system is a coordinate system for mapping position in the sky which based on the rotation and revolution around the Sun of the planets.

In this article,“celestial coordinate system”, the difficult point in the teaching of the Conspectus of the Earth, is analysed and studied and three key points are proposed: finding the joint point, establishing an coordinate system mode that can be accepted easily and giving out the basic dots & great circle system very distinctly.