高速电视测量光学系统设计及其在航天靶场中的应用

Design and Application of High-speed TV Measurement Optical System in Space Range

高速电视测量仪主要用于完成导弹和运载火箭发射试验任务中点火、起飞、飞离塔架过程中横向漂移量测量以及初始段高精度弹道测量、高帧频实况景象记录任务。为适应航天靶场测控任务的需要,持续提升我国航天靶场的光学测控水平,设计了一套焦距为25~350 mm的连续变焦光学系统。该系统可以根据不同的任务需要和布站条件,改变镜头焦距,调整摄像机的视场,确保目标在视场中成像占一定比例。另外,该系统增加了高速电视测量仪的跟踪测量距离,并有效解决了定焦光学系统相机成像时容易出现倒影、重影以及存储图像上有干扰条纹现象等问题。

The high speed TV measuring instrument mainly completes the task of measuring the lateral drift,the trajectory of the initial flight section with high precision,and recording the scene at high frame rate in the process of missile and rocket firing,taking off and leaving the tower. In order to meet the requirements of the space target measurement and continue to improve the optical measurement and control level of China ＇s space range,a continuous zoom optical system with a focal length of 25-350 mm was designed. The system can change the focal length of the lens and adjust the field of view of the camera according to different task requirements and station conditions,so as to ensure that the target is imaged in a certain proportion in the field of view. In addition,the system increases the tracking and measuring distance of high speed TV measuring instrument,and effectively solves the problems of reflection,double shadow and interference fringes on the stored image in the camera of fixed focus optical system.