CIG图象抖动对成像制导仿真系统的影响

The Influence of CIG Image Vibration on Image Guidance Simulation System

分析了计算机成像（ＣＩＧ）系统的图象抖动对成像制导仿真系统的影响，一方面使目标的角位置精度下降，更重要的是严重影响ＣＣＤ摄像机的成像质量，推导出了图像运动的调制传递函数（ＭＴＦ）表达式，计算结果表明：图像抖动将引起ＭＴＦ的严重下降。造成图像模糊。

This paper analyzes the influence of CIG image vibration on image guidance simulation system.On the one hand,it makes the target angular accuracy degrate,on the other hand,it seriously influenees the image quality of CCD system.The expressions of MTF for image vibration are developed.The analytical results illustrate that the image vibration gives rise to reduction of MTF and the image smearing seriously and makes the tracking performance degrate.