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中文摘要：
提出了捕获跟踪水体地标的飞行器导航定位方法.根据水体在红外图像中的统计特性,检测水体地标并对其进行跟踪.跟踪地标时根据飞行器连续3个相邻采集位置的测量数据解算出飞行器与地标间的斜距,获得飞行器在地标坐标系中的坐标,然后经过坐标转换确定出飞行器的大地坐标,并对惯性导航系统进行误差校正.实验结果表明,该方法能有效地提高飞行器导航精度.
英文摘要：
A method to navigate the aircrafts for acquiring and tracking water landmarks was pro- posed. Water landmarks were detected in infrared image. After the landmark location was acquired, tracking the landmark maintained the slant range estimate between the sensor and the landmark which was calculated depending on data of three successive positions from the measured information. Thus, the coordinates of the aircraft was obtained in the landmark coordinate system. Then, the absolute position of the aircraft was identified by the transformation from the landmark coordinate system into the world coordinate system. The experiment results show that the proposed method can effectively improve the navigation accuracy of the aircraft.
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