凝视热像仪搜索系统回扫速率分析

摘要

The rapid flyback technology of the thermal imager has been widely used in the photoelectric searching sys-tem.The matching accuracy between the scanning rate of the thermal imager and the scanning rate of the rotary table is related to the imaging quality of the thermal imager.A two -axis turntable motion model is established in linear space.According to the coordinate transformation theory,the motion of the target relative to thermal imager in the two axis rotating table is analyzed,and a mathematical analytical equation for the scanning rate of the searching system and the scanning rate of the two -axis rotary table is derived,which provides a key theoretical basis for the application of the rapid flyback technology in thermal imager.%凝视热像仪快速回扫技术已经广泛应用在光电搜索系统中.凝视热像仪回摆扫描速率与转台扫描速率的匹配精度关系到热像仪的成像质量,本文在线性空间建立两轴转台运动模型,根据坐标变换理论分析了两轴转台在运动时目标相对热像仪的运动情况,推导了凝视热像仪搜索系统的回扫速率与两轴转台扫描速率的数学公式,为凝视热像仪快速回扫技术的应用提供了关键的理论基础.