星载TDICCD随机振动与数据处理研究

对星载TDICCD进行了随机振动试验，提出了TDICCD机体在进行宽带随机振动工程试验中必定面临的几个技术问题及处理方法，分析了振动环境与结构振动特性的关系及其对TDICCD结构的影响和危害，研究了试验的实用技术和控制方式的选择要点．根据对星载TDICCD振动信号的现场采集结果，分析了振动信号的时域划分、信号采集基本参数的选择原则，并用信号分析仪进行了数据处理，获得了该机体振动的参数，这些动态特性参数为星载TDICCD的防振、隔振提供了可靠的参考，为对机体进行有限元模态计算提供了修正和科学依据．

Research on Random Vibration for Satellite TDICCD Camera and Data Processing

Random vibration test of the satellite TDICCD camera is performed in this paper. Several engineering problems during TDICCD camera random vibration test were discussed and solving methods were pointed out. The relationship between the vibration environment and structural dynamic properties is analysed, as well as the vibration environment could pose the effect and hazard to TDICCD structure. In addition the testing's practical technique and the selective gist of the control methods are studied and introduced separately. Based on site-collected results of the satellite TDICCD camera vibrating signal, the paper analyzes the time-region division of vibrating signal and the selection principle of its parameters. The date analysis is carried out with signal processor and the camera's each state of parameters were obtained. Parameters of the block's dynamic characteristic can provide us a reliable reference to satellite TDICCD camera's antivibration and vibration isolation. These also are used as modification and scientific basis for finite element calculation of camera's modality.