利用SAR和数字地图数据进行精确辅助惯性导航

IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences Pub Date : 1990-03-20 DOI:10.1109/PLANS.1990.66219

J. Bevington, C. Marttila

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引用次数: 7

摘要

作者描述了一种利用合成孔径雷达(SAR)传感器和机载数字地图数据库的图像获取惯性导航系统位置更新信息的新方案。通过将从SAR图像中提取的地形特征的位置与使用数字地图和当前导航估计预测的位置进行比较，获得更新信息。作者还讨论了整个系统的概念以及迄今为止获得的实验和分析结果。分析结果包括初步误差分析，该分析处理了由导航误差引起的SAR图像畸变及其对更新精度的影响。介绍了地形特征提取算法，并给出了实验结果。

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Precision aided inertial navigation using SAR and digital map data

The authors describe a novel scheme for obtaining position update information for an inertial navigation system through the use of imagery from a synthetic aperture radar (SAR) sensor and an onboard digital map database. Updated information is obtained through comparison of the locations of terrain features extracted from the SAR imagery with locations predicted using the digital map and current navigation estimates. The authors also discuss the overall system concept along with experimental and analytical results obtained to date. Analytical results include a preliminary error analysis which treats SAR image distortions introduced through navigation errors and the consequent effects on update accuracies. A description of the terrain feature extraction Algorithms is presented along with experimental results.<>

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IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences

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