Detecting method of principal point for large-scale CCD camera with long focal distance;

Based on the study of the focal length of thin lens series, principal point distance and light focal power, this thesis will discuss on the cardinal (base) point of tri combination lens system and light focal power in the air, and make it easier to solve the problems about the combination system of three lens group and instant imagery.

The author s analysed the background, the main features and basic functions of the "Criteria of the Course of Ideology and Politics".

This paper studies a class of optimal structures of a finite word length (FWL) digital controller, focusing on the main pole sensitivity with respect to the realization of the controller.