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Combining Conditioned Laser Altimeter Data and GPS Altitude Data to Obtain Accurate Aircraft Sensor Height Measurements

机译:结合条件激光测高仪数据和Gps高度数据,获得精确的飞机传感器高度测量

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摘要

For low level applications, the height of a given sensor above a surface or vegetation canopy is often a critical measurement if vertical gradients are significant (i.e. within the lower boundary layer). This is particularly true for low flying aircraft (10-20 m altitude) where, under stable conditions, vertical gradients are significant over a few meters. Data from two different altitude measuring systems (GPS and laser altimeters) can be combined to produce an accurate sensor altitude measurement. This report outlines an algorithm developed to condition laser altimeter data and combines it with Global Positioning System (GPS) altitude data to arrive at a more accurate sensor altitude measurement for low-level flights.

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