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.

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.

By analyzing the photoetching technique of the slot antenna array,the paper expounds how to manufacture the slot antenna array by photoetching,as well as the results and main problems of the experiments.

The radar structure is optimized through antenna array thermal design and antenna pedestal mechanical simulation analysis.

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.