Method of Correcting INAS Error Based on LandmarkImage Messages
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摘要: 提出了一种基于地标图像信息的惯导系统误差校正方法,并进行了仿真实验研究.该方法利用飞机光电平台上的地标图像成像系统,通过地标图像探测、图像变换、匹配定位、坐标变换解算出飞机的空间三维坐标.该三维坐标与惯导系统所给出的坐标进行比较,得出飞机惯导系统的航迹误差,从而实现对惯导系统的误差校正.Abstract: A method of correcting INAS error based on landmark-image messages is described, emulating results are presented. Using landmark-imaging system on the photoelectrical platform, the position of a plane can be worked out through landmark-image detecting, image transforming, matching orientation and coordinate transforming. Comparing this position with the coordinates received by INAS, the flight-path error of the plane can be calculated, accordingly the error of INAS can be corrected.
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Key words:
- inertial navigation /
- errors /
- correction /
- integration /
- landmark image
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