越野飞行的压力和布兰查德高度错误

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI:10.1109/PLANS.2010.5507348

Te-chang Li, V. Chueh

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引用次数: 1

摘要

从气压高度计获得的压力高度通常被惯性导航系统(INS)用作垂直通道的高度参考。气压高度是根据标准日的固定大气模型计算的气压。由于实际大气与标准日的偏差，压力高度存在较大误差(可达10%)。另一种可能计算更精确高度的算法是布兰查德算法。

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Errors in the pressure and Blanchard altitudes for a cross country flight

The pressure altitude obtained from a barometric altimeter is commonly used by an Inertial Navigation System (INS) as an altitude reference for the vertical channel. Pressure altitude is computed from the pressure based on a stationary atmospheric model for the standard day. Significant error (up to 10%) exists in the pressure altitude due to deviation of the actual atmosphere from the standard day. An alternate algorithm that possibly computes a more accurate altitude is the Blanchard algorithm.

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IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium

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