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首页> 外文期刊>Journal of geovisualization and spatial analysis >Mixed Centroid Method for Spaceborne Laser Altimeter Calibration
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Mixed Centroid Method for Spaceborne Laser Altimeter Calibration

机译：对星载激光混合重心法测高计校准

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摘要

The on-orbit calibration of spaceborne laser altimeters is based on traditional geometric calibration in which the laser pointing angle error is the primary evaluation index. This study proposes a mixed centroid method for calculating the laser footprint center by using the geometric center of each energy level eliminating the abnormal energy level points, inverting the laser energy level distribution, and correcting the true footprint. Then, the mixed centroid method is compared with the traditional geometric center method and the centroid method. Simulation comparisons demonstrate that the proposed method offers high precision and low calibration cost, thereby improving the calibration accuracy of the target. The proposed method provides a reference algorithm for the ground field calibration of the next generation of high-resolution mapping satellites in China.
机译：星载激光的在轨标定高度计是基于传统的几何激光指向角的校准错误是主要的评价指标。提出了一种混合计算重心法激光足迹通过几何中心中心每个能级的消除异常的能量水平点,反相激光能级分布和纠正真正的足迹。相比与传统的几何中心吗方法和重心法。比较表明该方法提供高精度和低校准成本,从而提高校准精度的目标。算法的地面现场校准新一代的高分辨率的映射卫星在中国。

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