为了解决光电系统的目标定位问题,提出了一种机载光电系统的自主定位方法。利用齐次坐标变换方法推导了机载光电目标从光电平台极坐标系到WGS-84大地坐标系的转换方程;采用工程实例进行了机载光电系统的目标定位误差分析。分析结果表明,该方法可以减小定位误差,获得较高的定位精度,满足对海上或陆上目标定位的需求。该方法实现简单,具有很强的实用性和推广价值。

An self-positioning of airborne electro optical system was proposed in order to solve the target positioning problem. Based on the homogeneous coordinate transformation, the conversion equations about airborne photoelectric target were derived from polar coordinate of electro optical platform to WGS-84 geodetic coordinate. Using engineering examples, positioning error analysis on airborne photoelectric system was carried out. The results show that the method can reduce the positioning error and obtain a higher location accuracy to meet the needs of target location on sea or load. The self-positioning method is simple and very practical and has strong promotional value.